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April 20, 2014

Search: calculus derivative HELP!

Number of results: 28,779

Applied Calculus
This is a chain rule. (the derivative of the whole thing times the derivative of what is in the parenth.) first derivative: (1/2)(5) (5t+4)^-1/2 Take the derivative of the above for the second derivative. Take the derivative of that answer again and you will have the 3rd ...
Wednesday, February 20, 2013 at 6:24pm by JJ

Calculus
Look in the index of your calculus book for derivative, definition of derivative. They may explain it better or search on google for "definition of derivative" calculus
Sunday, December 9, 2007 at 3:11pm by Damon

Calculus
second derivative is derivative of first derivative on wolframalpha dot com type : derivative 4 ( x - 3 ) / [ 2 x ^ 2 - 12 x + ( y -10 ) y ] and click option = then Show steps
Friday, May 4, 2012 at 8:27am by Bosnian

calc arc length
You need to integrate sqrt[1+f'(x)^2] from x = 0 to pi/3. Computing the derivative of f(x) is not difficult, you can use the chain rule, substitute u = x^3 for the upper limit and use that the derivative w.r.t. x is the derivative w.r.t u times the derivative of of u w.r.t. x...
Wednesday, December 19, 2012 at 5:36pm by Count Iblis

Calculus
Differentiate f(x) to get f'(x), then substitute a for x. Let u = 1 + x Then you want the derivative of ( (2u-1)/u. That is the derivative of -1/u (since the derivative of 2u/u is 0). The derivative is therefore is u^-2 = 1/(1+x)^2 That becomes 1/(1+a^2)when a is substituted ...
Monday, February 15, 2010 at 12:25am by drwls

calculus
The derivative of -x^2 is -2x. The derivative of x is 1. Add the two terms. In general, the derivative of any term that can be written a*x^n, where a and n are constants, is n*a*x^(n-1)
Thursday, December 30, 2010 at 12:29am by drwls

Calculus Derivative
I'm still not quite sure how that works out, if you can explain it please? Isn't the derivative of v dv/dt and the derivative of m (since it's a constant) 0?
Wednesday, March 6, 2013 at 3:38pm by Mary

Calculus Derivative- Taylor Series?
your first derivative should have been: y' = -1(x-1)^-2 then y'' = 2(x-1)^-3 y''' = -6(x-1)^-4 ----> the third derivativ y'''' = 24(x-1)^-5 ----> the 4th derivative y''''' = -120(x-1)^-6 ---> the 5th derivative did you notice that the numbers 1 , 2, 6, 24 , 120 are ...
Sunday, March 10, 2013 at 5:37pm by Reiny

Calculus
That is the derivative. d/dt (t^3/3) = t^2 Since you asked for the derivative, I derived the derivative.
Sunday, December 9, 2007 at 3:11pm by Damon

Calculus
The derivative of a product. The rule is: the first times the derivative of the second PLUS the second times the derivative of the first. simplify your answer. The derivative of the first: 4x-2 The derivative of the second -3x^-4 -8x^-5 Can you finish with these hints?
Friday, February 22, 2013 at 10:38am by JJ

Calculus
I need to find the second derivative of y=x(x-1)^1/2. I found the first derivative is 2x-1/2(x-1)^1/2, if someone could check, but I am miserably stuck on the second derivative.
Monday, April 18, 2011 at 1:28am by Amie

calculus
when you take the derivative of something for exaple y = 3x^3 +2x^2+3 it's y' = 9x^2 + 4x the equation y' is the derivative of the original equation- which was cubic- the derivative becomes quadratic.
Friday, November 2, 2012 at 7:24pm by Sanya

Calculus derivatives
The derivative f'(a) is the sum of the derivative of a and the derivative of sqrt a. In this case, a is treated as a variable, not a constant. The answer is 1 + 1/(sqrt a)
Monday, October 27, 2008 at 5:27am by drwls

Calculus
is that ln (x^2) or (ln x)^2 ? anyway, in any case, it is not differentiable at x = 0 because if you get the derivative, for ln (x^2): ln (x^2) = 2*ln x derivative of 2*ln x = 2/x for (ln x)^2: derivative (ln x)^2 = 2*(ln x)/x if you substitute x=0 to the derivative, the ...
Friday, October 29, 2010 at 12:42am by jai

calculus
The maximum is where the first derivative is zero, provided the second derivative is negative there. Solve the equation f'(x) = -x^2 +6x -5 = 0 -(x-5)(x-1) = 0 x = 5 and x = 1 are either maxima or minima. Use the second derivative test to see which is which.
Tuesday, June 16, 2009 at 2:00pm by drwls

Calculus
The zeros of the derivative or the zeros of the function ? I will assume you want the zeros of the derivative. factor it first = x^2(x-1)^3[4x + 3(x-1)] = x^2(x-1)^3(7x-3) we set this equal to zero to get x = 0, x = 1 and x = 3/7 remember that the function increases when the ...
Sunday, December 13, 2009 at 9:56pm by Reiny

calculus
Do you mean e^(2x)? The first derivative is 2 e^2x, and its value at x = 0 is 2. The second derivative is 4 e^2x, and its value at x=0 is 4. You should be able to figure out the nth derivative, and apply the Taylor series formula. If you don't know it, now is a time to learn ...
Thursday, October 7, 2010 at 3:42am by drwls

Maths Calculus Derivative Integral - Urgent Please
Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 (at the top) to x-5 (at the bottom) of square root of Sin(x)dx
Monday, October 18, 2010 at 8:26am by Nick

Calculus (Continuity and Differentiability)
If they form a corner, there are two values of the derivative at that point, the different slopes on each side of the corner. By the way, the second derivative is undefined there since the first derivative changes instantly.
Saturday, November 12, 2011 at 3:43pm by Damon

calculus
Please help with this. I need the first derivative of f(x)=4(x+squareroot (x(8-x)) and then the second derivative of this to show by the second derivative test that it is a local maximum. This is difficult to put into form here and I hope I have got it right. Many thanks.
Thursday, February 24, 2011 at 3:08pm by Frank

Calculus
The answer to question 1) is indeed sqrt( 1 + X^6) * 3x. You can put x^3 = y and differentiate w.r.t. y and then multiply by the derivative of y w.r.t. x (chain rule). The derivative w.r.t. y is sqrt(1+y^2) =sqrt(1+x^6) and the derivative of y w.r.t. x is 3 x^2.
Wednesday, December 5, 2007 at 3:16am by Count Iblis

Calculus
he was starting from where you left off with your derivative. the first time you wrote "so far I know how to find the derivative which is 4x^3-2x now I am stuck... Please help " that derivative is wrong. it is simply the one he used, hence the wrong answer.
Friday, March 9, 2007 at 10:51am by joey

calculus
What I did was for the first derivative. You can proceed in a similar way for the second derivative, but I guess substitution is out. Take the derivative of what you've got as a product. u=(t^2 + 5)^7 v=16t d(uv)/dt = udv/dt + vdu/dt
Wednesday, June 29, 2011 at 4:28pm by MathMate

Calculus (Continuity and Differentiability)
In that case, the derivative is continuous. The 2nd derivative will not be continuous at the cusp. The function whose derivative is the v-shaped graph, will also be continuous, but display a sharp corner where the two parabolas intersect.
Saturday, November 12, 2011 at 3:43pm by Steve

calculus
Okay but now I'm confused because when I find the derivative of the volume I get dv/dt=2s(ds/dt) then I don't know the rest because I have to find the derivative for 108/4s -s/4 which equals to h but what would be its derivative?
Saturday, January 3, 2009 at 4:25pm by Barbara

Calculus
Take the derivative of the function because the derivative is equal to the slope of the tangent line. a horizontal line has a slope of zero. Set you derivative = 0 and solve for x. That should give you the correct value of x.
Thursday, February 21, 2013 at 4:38pm by JJ

calculus
Please help with this. I submitted it below and was asked to clarify by Henry (hope this is clearer and thank you). I need the first derivative of f(x)=4(x+ sqrt (x(8-x)).And then the second derivative of this to show by the second derivative test that it is a local maximum. ...
Friday, March 4, 2011 at 1:48pm by Frank

calculus
Find the derivative of the function using the definition of derivative. g(t)= 9/sqrt(t) g'(t)= state the domain of the function and the domain of the derivative (use interval notation)
Wednesday, September 19, 2012 at 10:07pm by maura urgent!!

Calculus
You were given: Find the derivative of f 0f x. f(x) = x^2 - 8x - 17 at x = 4 We first find the derivative of the given function and then replace x with 4 in the derivative we will find. I will use the power rule to find the derivative of your function. The Power Rule: The ...
Monday, January 7, 2008 at 5:56pm by Guido

Calculus
Well the Sqrt(4sin(x)+2) is the same thing as saying (4sin(x)+2)^(1/2)....sooo take the derivative using the chain rule. So first you would take the derivative of the outside by bringing the (1/2) and subtracting one from the exponent. Then take the derivative of the inside. 4...
Wednesday, December 8, 2010 at 9:01pm by Nisa

Calculus
If I have a function f(x), and am given its derivative, f'(x): may I take it as a given that f(x) is an integral of f'(x). My reasoning is that 'undoing' the derivative gives me the derivative. Eg is 1/3x^3 an integral of x^2? Thanks.
Saturday, September 15, 2007 at 7:52am by charlie

Calculus derivatives
f(a) = a + √a (a) Find the derivative of the function using the definition of derivative.
Monday, October 27, 2008 at 5:27am by Ben

Calculus
You have already written the correct value of the derivative of y(x). That is y' = m x^(m-1) . The second derivative is y" = m(m-1)y^(m-2)
Saturday, September 5, 2009 at 2:37am by drwls

Calculus
Sorry I don't understand how to get the second derivative, I gsolved the first derivative already
Sunday, March 20, 2011 at 7:47pm by Janet

calculus
Calculate the derivative of the function. Then find the value of the derivative as specified. f(x) = 8/(x+2); f '(0)
Sunday, July 4, 2010 at 8:45pm by theo

Calculus
first, it's derivative. since 217^(1/2) is a constant, the derivative is zero.
Wednesday, December 5, 2012 at 9:31pm by Steve

CALCULUS
The derivative of e^x is e^x. To determine the derivative apply the constant multiple rule
Wednesday, February 20, 2013 at 2:50pm by Anon

calculus
Um I still don't get it because that hint was the derivative and I asked for the anti-derivative of square root x
Wednesday, January 14, 2009 at 9:20pm by Barbara

Dear Stuck - Calculus
Did you get f'(x) = 2 by simply taking the derivative of the top over the derivative of the bottom ?? my oh my !!
Monday, February 15, 2010 at 12:25am by Reiny

Calculus
She found the derivative of the equation, and then simply plugged in a one for the (x) after it was in its derivative form.
Sunday, October 2, 2011 at 7:20pm by Ed

calculus
Find derivative with respect to x: y'(x)=dy/dx=6x-5 Evaluate derivative at x=3: y'(3)=6(3)-5=13
Monday, May 20, 2013 at 8:23am by MathMate

Calculus
Use the quotient law where you find the derivative of f(x)*g(x)-the derivative of g(x)*f(x) and the whole thing divided by g(x). (x+2)(x^3+x-2)' - (x+2)'(x^3+x-2) ---------------------------------- (x^3+x-2)^2 (x+2)(3x^2+1) - 1(x^3+x-2) ---------------------------------- (x^3+...
Wednesday, November 5, 2008 at 8:49pm by Samantha

calculus
Use the function defined below to calculate the indicated derivative. f(t)= 4/(t^3)+3 what is f''(2) (second derivative) Need help!!
Wednesday, September 22, 2010 at 11:19am by Ben

calculus
Chain rule. First the derivative of arctan, then derivative of (x^2=x)
Wednesday, November 11, 2009 at 2:12pm by bobpursley

Calculus
I used the derivative. Do you want to find the derivative by "first principles" ?
Sunday, February 5, 2012 at 11:35pm by Reiny

calculus
derivative of top = -1 derivative of bottom = (1/3) x^-(2/3) ratio = -3/27^(2/3) = -3 /3^2 = -3/9 = -1/3
Saturday, April 21, 2012 at 6:45pm by Damon

calculus
the velocity at time t is the derivative. the derivative of s(t) with respect to t = -A*sin(t + )(t) assuming that everything but t and s(t) are constent. to find out when the velocity is 0 we just have to set the derivative = to 0 and solve for t so it looks like the ...
Tuesday, September 27, 2011 at 12:22am by johnathon

calculus
Please help with this. I submitted it below but no one responded. I need the first derivative of f(x)=4(x+ then the square root to include (x(8-x)), then close bracket.And then the second derivative of this to show by the second derivative test that it is a local maximum. This...
Tuesday, March 1, 2011 at 12:45pm by Frank

CALCULUS
what is the derivative of ln(x-1)? If you are studying the calculus of logarithms your question surprises me, since that is one of the most basic ones in that topic. in general if y = ln("anything") then y' = 1/"anything" * derivative of "anything" just apply this rule and let...
Sunday, May 6, 2007 at 2:06pm by URGENT

12th Calculus
I will assume you really meant to write the derivative y' and not the function y although I would have thought the book would ask you to find that derivative. Wherever that derivative, y', is zero, the curve is horizontal This is twice at x = 1 and at x =2 and at x = 4 Look at...
Tuesday, November 11, 2008 at 7:35pm by Damon

calculus
Differentiate both sides of the double angle identify sin 2x= 2 sin x cos x to determine an identify for cos x. Find the first derivative, second derivative, third fourth, fifth, sixth, seventh and eighth derivative. Use the results to find the twelfth and fifteenth derivative...
Tuesday, February 21, 2012 at 7:42pm by john

calculus
so you want to find where the first derivative (rate of growth) is a maximum. Isn't that where the second derivative is equal to zero ? Give it a shot
Tuesday, April 20, 2010 at 5:04pm by Reiny

Calculus
If P'(t)= [10(t+2)]/t. What is P(t)? It is asking for the derivative, and I am so lost! Because so far we haven't covered how to find the derivative of something so complicated. Any ideas? TY
Sunday, August 15, 2010 at 8:35pm by Jaimie

Calculus
Find the derivative of the function using the definition of a derivative. F(x)=squareroot(1-3x) Please show work for understanding, thank you! :)
Thursday, February 14, 2013 at 10:34pm by Tori

Calculus
Find the derivative of m(x)=1/(x+1) by using the definition of the derivative.
Tuesday, February 12, 2013 at 9:00pm by Becky

Applied Calculus
The derivative of a constant is 0 The derivative of 340 = 0 The derivative of 340x would be 340 The derivative of 340x^2 would be 680x.
Monday, February 11, 2013 at 1:05pm by JJ

Calculus
Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x 3x + 1 (3x + 1 is under the square root) 5) ( ...
Sunday, September 30, 2007 at 9:03pm by Matt

calculus
Find the first and second derivative - simplify your answer. y=x/4x+1 I solved the first derivative and got 1/(4x+1)^2 Not sure if I did the first derivative right and not sure how to do the second derivative.
Wednesday, March 16, 2011 at 11:56pm by Janet

calculus
y = ln (x e^-x) y' = (1/(x e^-x) ) * [ x (-e^-x) + e^-x ] = -1 + 1/x that derivative is zero when x = 1 then xe^-x = .36788 what is the second derivative? y'' = 0 - 1/x^2 humm, when x = 1 curvature is - so that is a maximum and the only one I see
Sunday, March 23, 2008 at 5:55pm by Damon

Calculus
Use derivative formulas to find the derivative of the function. please show your work h(x)=10^3-25x^6+3x^15
Tuesday, September 25, 2012 at 11:44pm by Sarah

calculus
did you notice that the derivative of x^5=1 is 4x^4 which is a multiple of x^4, so it is straightforward integral [ x4/(√(x^5 - 1)^(1/2) = int [ x^4 (x^5 - 1)^(-1/2) = (2/5) (x^5 - 1)^(1/2) + c check by taking the derivative, it works
Sunday, March 24, 2013 at 8:56pm by Reiny

Calculus
You can find the slope of the tangent line by setting the first derivative equal to zero and solving for x. rewrite sqrt x as x^1/2 This becomes the derivative of a quotient. The denominator times the derivative of the numerator minus the numerator times the derivative of the ...
Monday, March 11, 2013 at 2:52pm by Dr. Jane

calculus
rewrite the square root of x as x^1/2 This is the quotient rule. demoninator times the derivative of the numerator minus the numerator times the derivative of the denominator all over the denominator squared. So... We know the derivative will have an x^2 in the denomoniator. ...
Thursday, February 21, 2013 at 12:15pm by JJ

Calculus
Show that the curves r=acos() and r=cos() intersect at right angles. can it be shown that the derivative of one is the negative reciprocal of the derivative of the other?
Thursday, April 5, 2007 at 1:22pm by Amy

calculus ..>steve
remember that the first derivative gives you the max's and min's and the second derivative tells you concavity and inflection points
Saturday, December 15, 2012 at 12:36pm by Elsi

Calculus--> bobpursley
How do you get m=0? from taking the second derivative? does c=1? Can you check my work on how I get the derivative of R=M^2(c/2-m/3) NEXT R=1/2(CM^2)-1/3(M^3) NEXT dR/dM=CM-M^2. I checked in the back, and that was the answer for the first part of the equation. Isn't the ...
Wednesday, May 30, 2007 at 6:34pm by Anonymous

Calculus
Follow the rules. Derivative for the slope, which in this case is always positive. The second derivative is zero. There are no critical points. and there are no intervals where the function is decreasing.
Sunday, October 12, 2008 at 12:20pm by bobpursley

Calculus Derivative
I'm trying to calculate the derivative of this: P= mv/ sqrt(1-v^2/c^2)where m and c are constants, and v depends on t. I know about the chain and product rules but I'm not even sure where to start. :/ Thank you for your help.
Wednesday, March 6, 2013 at 3:38pm by Mary

calculus
For a function f(x) the derivative at x=2 is 5. Is the derivative of f(x) continuous at x=2? Thanks!
Monday, December 1, 2008 at 11:17pm by Ginger

Calculus
What is the derivative and second derivative of 3x/(x^2-4)
Tuesday, June 22, 2010 at 1:48pm by Lala

Calculus derivative
How do you do the derivative of a^x, for example, (3/4)^x Thank you for helping!
Thursday, September 27, 2012 at 8:31am by Grateful

calculus derivative HELP!
Find the derivative of: y=2sqrt(x)-(1/x)
Monday, October 8, 2012 at 12:16am by erica

Calculus
Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x /3x + 1 (3x + 1 is under a square root(/) 5) ( f...
Sunday, September 30, 2007 at 9:28pm by Matt

Math (Calculus)
y=x2x+1 Find the derivative of the expression. (2x+1) To find the derivative of 2x, multiply the base (x) by the exponent (1), then subtract 1 from the exponent (1-1=0). Since the exponent is now 0, x is eliminated from the term. 1 Since 1 does not contain x, the derivative ...
Wednesday, May 7, 2008 at 1:19pm by Anonymous

Calculus
Well, the derivative of sin is cos, and the derivative of cotan is cosec^2, both of which should be in your standard list of derivatibes. Knowing that, you can just write down the answer.
Friday, October 16, 2009 at 12:50am by jim

Calculus
You did not state what the function is , but from your derivative I deduced it had to be y = 1/x + 1/(5-x) + C setting your derivative equal to zero 1/(5-x)^2 = 1/x^2 (5-x) = x^2 25 - 10x + x^2 = x^2 x = 2.5 sub that back into y = (your equation) and you should get y = 4/5
Tuesday, April 13, 2010 at 10:03pm by Reiny

Calculus
Perhaps your derivative is wrong Using the quotient rule, I got a derivative of -4t(t^3 - 8)/(4+t^3)^2 setting that to zero gave me t - 2 or t = 0 for the given domain, t=2 v(2) = 16/12 = 4/3
Wednesday, February 22, 2012 at 11:33pm by Reiny

Calculus
Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ...
Saturday, October 25, 2008 at 2:40pm by George

Calculus
Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ...
Monday, October 27, 2008 at 9:58am by George

Calculus
Use a symbolic differentiation utility to find the derivative of the function g(x)=x((x^2)+1). Use the utility to graph the function and is derivative on the same set of coordinate axes. Describe the behavior of the function that corresponds to any zeroes of the graph of the...
Sunday, November 11, 2007 at 5:51pm by Jon

calculus
PS - derivative of a constant is 0, not 1. Reason 1: derivative is rate of change. constants do not change. Reason 2: since 1 = x^0, a constant k = kx^0 the derivative is thus 0*k*x^(-1) = 0
Tuesday, November 13, 2012 at 11:16pm by Steve

Calculus - derivatives
Okay, I want to find the derivative of (x^x)^(x^x)... Well, I already went through the process of finding the derivative of just x^x (I used ln to do this). This is what I found... dy/dx = x^x(lnx+1) So now I want to find the derivative of (x^x)^(x^x) (using ln). This is what ...
Sunday, November 29, 2009 at 3:58am by Lucy X

calculus
Steeve you are right - I shouldn't have set denominator to zero but not because of your reasoning. No. But because it's a second derivative. When it comes to first derivative you CAN set (and have to sometimes) denominator to zero if you want to find vertical asymptotes! But ...
Tuesday, June 11, 2013 at 9:02am by JuliaB

math
Let f be a real value function and x Df then 0 lim ( ) ( ) h f x h f x h + - when it exists is called A) The derivative of f at a B) The derivative of f at h C) The derivative of f at x D) The derivative of f at x = h
Friday, November 2, 2012 at 12:26am by Zaheer

math
If I understand your notation correctly, you want the 725th derivative of sin x ?? 1st derivative of sin x = cosx 2nd derivative = -sinx 3rd derivative = -cosx 4th derivative = sinx Ahhh, we are back where we started from. so the 5th derivative = cos x ,etc. 725 4 = 181 with...
Thursday, October 15, 2009 at 5:37pm by Reiny

Calculus
This is derivative of a division (fraction. the rule is the denominator times the derivative of the numerator - the numerator times the derivative of the denominator. ALL OVER the denominator squared. The denominator of the derivative is the easy part. It is just (t^4 -2)^2 ...
Friday, February 22, 2013 at 9:16am by JJ

CALCULUS HELP
Find the second derivative for the function 5x^3+60x^2-36x-41 and solve the equation F(X)=0 i got to the second derivative but what do we do next to be able to get one of these answers.. F(x) = 5x3+60x2−36x−41 1. derivative of F(x) with respect to x = 15x2+120x&#...
Wednesday, September 26, 2012 at 12:19am by Herosugar

calculus
Could someone check my reasoning? thanx Find the derivative of the function. sin(sin[sinx]) I need to use the chain rule to solve. So I take the derivative sin(sin[sinx) first. Then multiply that by the inside which is the derivative of sin[sinx]. And multiply that by ...
Thursday, May 7, 2009 at 10:43am by XCS

calculus
Hello. I need help finding the open intervals of this equation: f(x)=3x^2-12 I already took the derivative of it by using the derivative test and I got 2,-2 as critical numbers
Monday, January 28, 2008 at 10:53pm by Mandy

calculus
Hello. I need help finding the open intervals of this equation: f(x)=3x^2-12 I already took the derivative of it by using the derivative test and I got 2,-2 as critical numbers
Monday, January 28, 2008 at 10:54pm by Mandy

Calculus (Help)
Also I would like to know how to set this problem up in finding the answer: Find the second derivative. y= sqrt(3x+4) Thanks, P.S. I tried taking 3x+4 and squaring it to the 1/2. I thought that might've been the same, then I took the derivative of that and got 1/2(3x+4)^(-1/2...
Wednesday, February 21, 2007 at 1:42am by Confused

Math-Calculus (check please)
The "concavity" of the function comes from the second derivative, where there is a critical point. If the second derivative is positive at a point where the first derivative is zero, the function is "concave upward" there. If it is negative, it is concave downward.
Saturday, November 1, 2008 at 8:32pm by drwls

Calculus
take the first derivative .... a) f is increasing for all values of x for which f '(x) is positive f is decreasing for all values of x for which f '(x) is negative take the second derivative c) if the second derivative is positive, f is concave up d) if the second derivative ...
Monday, November 29, 2010 at 9:53pm by Reiny

calculus
i need to use implicit differentiation to find the derivative: yx+y = 8 i keep getting y'=-1-y. i already know the derivative of this, by using explicit by simplification: y(x+1)=8 y=(8)/(x+1) y'= -(8)/(x+1)^2 how do i go about doing this the right way?
Friday, January 17, 2014 at 5:49pm by eric

Ap calculus
is that at a=0 or x=0,, anyway, to get the derivative, do the chain rule since two different terms with x are multiplied,, to do this let g(x)=3x and h(x)=sin x thus d/dx [g(x)h(x)] = g(x)*h'(x) + g'(x)h(x) *g(x)*h'(x) = you get derivative of h(x)=sin x an multiply this to g(x...
Wednesday, October 27, 2010 at 10:20pm by jai

calculus
You could construct the tangent at different points, and if the graph is free of kinks and vertical asymptotes, you can join the different points to get a graph of the derivative. A kink will imply a discontinuity in the derivative, and a vertical asymptote will mean the same ...
Tuesday, July 21, 2009 at 8:41am by MathMate

College Calculus 1
We have to find the first and second derivative of f(x)=x^(2/3)(6-x)^(1/3) I have the first derivative as being (4-x)/(x^(1/3)(6-x)^(2/3)) And that I know is right. The second derivative is -8/(x^(4/3)(6-x)^(5/3)) I did all the work but I am not getting the right answer... I ...
Thursday, October 14, 2010 at 3:16pm by Please help

calculus
how do you find the derivative of (X^2(2+x^1/2))/x^4. I'm confused because of the exponents rules. please show me the steps in simplifying the exponents then taking the derivative.
Tuesday, October 23, 2007 at 1:57am by jennifer

Calculus
Can't i figure out if its increasing or decreasing using the first derivative test? What is the point of the second derivative test?
Wednesday, November 14, 2007 at 12:13am by Phil

calculus
3. Plot f(x) =ln(x) and f(x) = 1/x in your calculator. Remembering that the derivative of f(x) is the instantaneous rate of change of f(x) why does it make sense that 1/x is the derivative of ln(x)?
Monday, February 10, 2014 at 6:36am by karim

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