April 16, 2014

Search: Math - Derivatives

Number of results: 214,299

I studied derivatives before, but kind of forgot them all, is there a website that gives me an overview of derivatives. What is first and second derivatives, how to find it, all the derivative rules and so on... thank you
Thursday, October 9, 2008 at 12:52am by Sam

convert derivatives of x,y,z, to r, Ɵ,z
convert derivatives of x,y,z, to r, Ɵ,z with chain rule? I want provment rules of converting rectangular derivatives to cylindrical derivatives and and also cylindrical to spherical.I know the rules but I cant prove EQUATIONS.thx alot
Thursday, December 1, 2011 at 2:58pm by parsa

if f(x)=x^3+5x, then f'(2)= if f(x)=cos(2x), then f'(pi/4) derivatives and anti derivatives please help
Tuesday, March 23, 2010 at 10:18pm by AdrianV

It is important to know rates of change in many fields. Derivatives appear often in physics and engineering. Accurate predictions are made using equations that employ derivatives. They are called differential equations.
Saturday, August 21, 2010 at 3:29am by drwls

You also can in google type: derivatives online When you see listo of results click on: numberempirecom/derivatives.php and solvemymathcom/online_math_calculator/calculus/derivative_calculator/index.php On this sites you will see your derivation in two different simplify forms
Wednesday, February 16, 2011 at 8:05pm by Bosnian

find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^3 + x+y and show that the mixed partial derivatives fxy and fyx are equal
Wednesday, March 7, 2012 at 11:06am by maggie

find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^3 + x+y and show that the mixed partial derivatives fxy and fyx are equal
Wednesday, March 7, 2012 at 11:10am by maggie

Calculus: Derivatives
I'm having trouble understanding what derivatives in calculus (instantaneous speed) is. Can someone please explain it to me, or provide some easy links to learn from? Thanks!
Sunday, September 9, 2007 at 8:32pm by Joe

Have you considered a Calculus Text? Even a review/study guide? Schuam's College Outline Series, College Calculus is very good. It is available at Barnes Noble.
Thursday, October 9, 2008 at 12:52am by bobpursley

Statistics & Numerical Techniques
Because that is the rule for polynomial derivatives. Add up the derivatives of each term. The derivative of a constant term (like -20 in your case) is zero. The derivative of a*x^n is n*a*x^(n-1)
Wednesday, September 16, 2009 at 7:33am by drwls

calculus (limits)
I do know how to take derivatives however the course I'm in hasn't taught them yet (long story) so I can't use derivatives in finding the solution; I have to factor. So perhaps a better question is: how do I factor the above expression in a way that will allow me to find the ...
Saturday, January 22, 2011 at 2:09pm by John

Calculus (Derivatives)
What is the derivative of the this functon? g(x) = -500/x, x cannot equal 0. I know that in order to fnd the derivative I need to put the function into the equation for evaluating derivatives as limits. lim as h -> 0 (f(x+h) - f(x))/h I did this, but I am having ...
Tuesday, November 1, 2011 at 2:37pm by Mishaka

You should have a list handy for the basic trig function derivatives so if y = (csc x)^7 -cos 4x dy/dx = 7(csc x)^6 ( -csc x)(cotx) + 4sin(4x) etc
Thursday, October 27, 2011 at 11:57pm by Reiny

What is wrong with the following reasoning??? f(x) = 2^x f'(x) = x[2^(x-1)] Although n x^(n-1) is the derivative of x^n, you cannot apply similar rules when x is the exponent and the number being raised to a power is a constant. The derivative of b^x, where b is a constant, is...
Wednesday, June 13, 2007 at 10:40pm by Raj

The derivatives of these trig functions should be right there in your Calculus text. for the second of your questions, I will use y' for the first derivative and y" for the second derivative i.e. y'= dy/dx 1+y=x+xy so y' = 1 + y + xy' y'(1-x) = 1+y y' = (1+y)/(1-x) y" = [(1-x)...
Wednesday, October 31, 2007 at 10:34pm by Reiny

show that the curves r=asin() and r=acos() intersect at right angles. can you show that the derivatives for each are the negative reciprocal of each other? That is the key. i need more info..i know how to find the derivative...but how will that prove my question. Do I need ...
Thursday, April 5, 2007 at 6:02pm by Amy

Calc 2
a) find the partial derivatives of each, and just plug in 1 for x and 3 for y (values should be close to 0)/ b) in using the difference quotients, take the limit as h approaches infinity of both each derivative, plugging in 0.1 for x and y in each one. It's better that you ...
Sunday, February 27, 2011 at 11:18pm by Joseph

a)find the first partial derivatives of f(x y)= x √1+y^2 b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)
Sunday, March 11, 2012 at 1:00pm by maria

calculus - derivatives
can you please find the first 5 derivatives for: f(x) = (0.5e^x)-(0.5e^-x) f'(x) = ? f''(x) = ? f'''(x) = ? f''''(x) = ? f'''''(x) = ? thanks :) f(x) = (0.5e^x)-(0.5e^-x) f'(x) = 0.5 e^x + 0.5 e^-x f''(x) = 0.5 e^x - 0.5 e^-x f'''(x) = 0.5 e^x + 0.5 e^-x f''''(x) = 0.5 e^x - 0...
Monday, July 30, 2007 at 6:15pm by COFFEE

Math >> limits
The limit is of the form: Lim x--> 0 f(x)/g(x) where f(0) = g(0) = 0. So we can't take the limits for f and g separately and divide them. Rewrite the limit as: Lim x--> 0 [f(x) - 0]/[g(x) - 0] = Lim x--> 0 [f(x)-f(0)]/[g(x)-g(0)] Lim x-->0{[f(x)-f(0)]/x}/{[g(x)-g(0...
Wednesday, September 5, 2007 at 6:57am by Count Iblis

Calculus grade 12
a) determine the derivative of y = sin2x b) determine the derivative of y = 2SinxCosx c) shoe that derivatives in parts a) and b) are equal d) explain why derivatives in parts a) and be should be equal.
Thursday, April 12, 2012 at 12:31am by Julie

Calculus AB list of common derivatives
Thursday, December 16, 2010 at 7:28pm by TutorCat

Find the outside and inside functions of the following to find their derivatives: 1) sqrt(2x+9) 2) cos(cos(x)) 3) tan(x) I already know how to find their derivatives I'm just not exactly sure what parts of the chain rule equation would be considered the outside and inside.
Tuesday, June 18, 2013 at 2:41pm by Robin

-4x^4 x^1/2+(-7/(x^2 x^1/2))
Thursday, September 9, 2010 at 8:13pm by Janel

In addition, can you walk me through how to get the derivatives for these 2 statements, too? a) y = x^5/3 - 5x^2/3 b) y = (the cubed root of the quantity) [(x^2 - 1)^2] Hi there. I need to find the first derivative of this statement. y=x(x+2)^3 I tried the chain rule, but I ...
Wednesday, March 14, 2007 at 9:07pm by Amy

Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also, which rules are ...
Thursday, October 3, 2013 at 3:52am by Daisy

good job
Wednesday, March 24, 2010 at 10:50pm by Reiny

Calc. Checking Answer
a. correct b.Somehow I get the negative of your result. See
Wednesday, April 6, 2011 at 5:36pm by bobpursley

Math: Derivatives
How did you get the answer? I don't quite understand. Thanks
Sunday, April 8, 2012 at 2:56pm by Nick

Find the derivatives of the function g(t)= cosh^3 t.
Tuesday, October 9, 2012 at 10:27pm by Joe

Math grade 12
Saturday, August 13, 2011 at 9:59am by Atul prakash patil

Calculus 2
I don't understand why you were instructed to use trig substitution for this question, it is straightforward You should recognize certain pattern of derivatives and integrals Notice that the derivative of the denominator is 2x and we have x at the top, so this follows the ...
Wednesday, October 10, 2012 at 9:08pm by Reiny

Econ/Math Derivatives
Find the derivative of the quotients: y=4X/(X-3)
Thursday, September 13, 2007 at 4:03pm by Rachel

Econ/Math Derivatives
Use the u/v rule: (vdu - udv)/v^2
Thursday, September 13, 2007 at 4:03pm by bobpursley

Math derivatives
Both of your answers are correct. Nice job!
Friday, August 15, 2008 at 12:41am by drwls

Math: Derivatives
The derivative of f(x) is -1-3/x² Don't know how you got -1, or what the question really is.
Sunday, April 8, 2012 at 2:56pm by MathMate

Math - Derivatives
The original equation is... f(x) = (28x)(ln(sqrt(x)) + 42
Sunday, January 25, 2009 at 12:57pm by Anonymous

The derivative is 1+ 8/x^3 Just add the derivatives of the two separate terms: x and -4/x^2.
Sunday, March 21, 2010 at 7:42pm by drwls

Math - eh?
not familiar with the notation fX(x) and fY(y) partial derivatives?
Tuesday, March 18, 2014 at 3:51pm by Steve

the answer to this question can not use derivatives (or shouldn't) because it is in a grade 11 math textbook within a quadratics unit. Anyone else want to give it a go?
Tuesday, March 24, 2009 at 6:52pm by Anonymous

Math - Derivatives/Logrithms
should be easy once you recall that d/dx a^x = a^x ln(a)
Friday, November 1, 2013 at 10:12pm by Steve

Math - Derivatives
WOW that actually helps a lot and less confusing to solve! Thanks so much!
Wednesday, January 28, 2009 at 3:49pm by Anonymous

Math: Calc: Implicit Derivatives
Find dy/dx give the relation (x^2/9)+(y^2/16)=1 Thank you!!
Thursday, June 14, 2012 at 10:12pm by Joey

find the derivatives, dy/dx for the folowing function : y=ln(cos(0.5)+(sin(x^2+3))^1/3)
Saturday, August 25, 2012 at 9:50am by deel

Math - Derivatives
How would one take the derivative of "f(x)^[g(x)]? Is there a formula I can follow to differentiate functions like that?
Wednesday, January 28, 2009 at 5:30pm by Anonymous

Oh! I haven't been taught derivatives yet. Thank you for pointing that out. I'm getting ahead of myself here. :)
Sunday, February 7, 2010 at 10:45pm by Stuck

Math(Please help)
f(x,y)=x^2 e^2x lny (2,1) I need to find the partial derivatives with respect to x and y. I have not idea how to do this especially with the (2,1).
Friday, April 29, 2011 at 9:42pm by Hannah

By setting x equal to the appropriate values in the binomial expansion ( or one of its derivatives) evaluate the following : sum(k=1 to n) (n,k) k^2
Saturday, September 8, 2012 at 6:02pm by frustrated

Math, derivatives
Thanks for your reply! That makes much more sense now. I guess I should go and review my identities.
Monday, May 5, 2008 at 8:19pm by Terry

Math - Derivatives
I find it difficult to take the derivative of something that has a constant base with a variable as an exponent...and simplify it... PLEASE HELP ME! f(x) = e^(x^(-1)) f'(x) = -1(e^(x^(-2))e^(x^(-1)) f'(x) = -e^(x^(-2))e^(x^(-1)) ????? and... f(x) = 3^x f'(x) = 3^x
Wednesday, January 28, 2009 at 3:49pm by Anonymous

ahh sorry that was supposed to be a new question. i need help with both though hahah, so pleaseee help me! i know derivatives but not in these contexts.
Monday, September 26, 2011 at 3:15pm by terra

Without specifying the f(x,y,t) function, you can only give a general formula. dz/dt(total) = z/x*dx/dt + z/y*dy/ dt + z/t where all of the z derivatives on the right are partial derivatives. dz/dt(total) = b z/x+ c z/y + z/t I won't know if the ...
Saturday, February 27, 2010 at 2:11pm by drwls

[ low*d(high) - high*d(low) ] / (low)^2 where high = numerator low = denominator d(high) and d(low) = respective derivatives first recall that the derivative of csc x = -(cot x)(csc x) therefore, [ x*(-6 (cot x)(csc x)) - 6 (csc x) ]/x^2 or -(6 csc x)*(x(cot x) + 1)/x^2 hope ...
Friday, October 28, 2011 at 1:29am by Jai

find the derivatives, dy/dx, for the following functions : y=(1+sin^2{2 exp (3x)})^5y please help me to solve this assignment. thank's
Monday, August 20, 2012 at 8:29am by deel

Calc 2
Lim 3x^2 csc^2 can be written x->0 Lim 3x^2/sin^2x x->0 You can get the limit as x->0 using L'Hopital's rule: It is the ratio of the derivatives of numerator and denominator. You have to apply it twice here, since the first derivatives are also 0/0 Lim 3x^2/sin^2x x-&...
Friday, February 29, 2008 at 12:56am by drwls

Calculus (final question I promise)
After all the help you have received here, you should be able to most of these questions yourself. You should also make the effort to type a ^ before exponents. Show your work and someone will help you. Factor the equations to find the x-axis interecepts. plug in x = 0 to get ...
Monday, July 28, 2008 at 8:56pm by anonymous

math/ calculus
full work out with explanation of this problem please we're working with derivatives and i dont understand it given h(x)= cotx/x find h'(pi/2)
Tuesday, December 20, 2011 at 5:08pm by Angie

Math: Derivatives
Use the shortcut rules to mentally calculate the derivative of the given function f(x) = −x + (3/x) + 1 After deriving it, I got -1+(0/1)+0= -1 But this answer is wrong, and I don't know why. Thank You
Sunday, April 8, 2012 at 2:56pm by Nick

Math - Limits/Derivatives
The demand x is the number of items that can be sold at a price of $p. For x = p^3 - 4p + 400, find the rate of change of p with respect to x by differentiating implicitly.
Monday, October 21, 2013 at 7:54pm by Cal

x/x^3 = 1/x^2 becomes 0 as x-->0 look at derivatives (2x+1)/(5x^4+8x^3+3x^2) -1/(5-8+3) --->oo
Friday, October 21, 2011 at 10:19am by Damon

equations do not have derivatives; functions do. for tis, use the chain rule: (e^u)' = e^u u' y = e^(-x^2) y' = e^(-x^2) (-2x) = -2x e^(-x^2)
Sunday, November 4, 2012 at 11:08am by Steve

If you mean y = √x - 3/x^2? then y' = 1/(2√x) + 6/x^3
Wednesday, July 18, 2012 at 11:14am by Steve

Take the ratio of derivatives as 1 is approached Lim 250 x^249/1 x-> 1 = 250 It's called L'Hopital's rule
Tuesday, November 6, 2007 at 4:34pm by drwls

a) they are odd but 1/x is undefined at x = 0 b) linear but x is odd and |x| is even c) d/dx (2^x) = 2^x ln 2 so both derivatives keep repeating but sin x is periodic
Friday, February 14, 2014 at 1:50pm by Damon

Math - derivatives of cos and sin fucntions
a) Find an equation of a line that is tangent to y=2sinx and whose slope is a maximum value. b) Is there more than one solution? Explain.
Saturday, November 6, 2010 at 2:23pm by Farah

differentiate and simplify y= (e^x - 1) / x^2
Sunday, March 25, 2012 at 4:37pm by help

Math >> limits
If you do not understand derivatives, then you will have to find the trig equivalent of the multiangle (identies)equivalents, and reduce the fractions.
Wednesday, September 5, 2007 at 6:57am by bobpursley

Let f(x) = 3(x-1)^3 + 4(x-1)^2 + 2(x-1) -7 (a) Determine f'''(1) without taking any derivatives. Explain your method. (b) Determine the general Taylor polynomial of f aobut c =2 by computing any for each k, using the formula above for f(x).
Thursday, November 13, 2008 at 10:47pm by Paul

Let f(x) = 3(x-1)^3 + 4(x-1)^2 + 2(x-1) -7 (a) Determine f'''(1) without taking any derivatives. Explain your method. (b) Determine the general Taylor polynomial of f aobut c =2 by computing any for each k, using the formula above for f(x).
Friday, November 14, 2008 at 3:14am by PAUL

Add the derivatives of each term. Apply the rule that the drivative of a*t^n is n*a*t^(n-1), is a is a constant. 5/sqrt(t) can be written 5*t^(-1/2), so for that one, a = 5 and n = -1/2 This was not a physics question. It is a beginning calculus question
Thursday, February 11, 2010 at 1:26pm by drwls

Calculus - Derivatives
Oh, okay. I got it. Thanks!
Wednesday, October 3, 2007 at 11:39am by Adam

isn't there a way you do it with the derivatives?
Tuesday, November 13, 2007 at 12:31pm by Joe

did u get e^(lnx) / x^2 ??
Tuesday, October 13, 2009 at 5:45pm by Carolina

Compute the derivatives of : f(x)= x^7 + 7^x+ 7^7
Monday, November 22, 2010 at 6:54pm by JJ

trig derivatives
Thursday, October 27, 2011 at 11:21pm by Reiny

Determine h'(x) for h(x)= [x/(1-x)]^2
Monday, February 20, 2012 at 3:23am by Jessi

Hi~ Thank you for your help! I was trying to work on a problem about Taylor series, but i don't think im approaching the problem the right way. I have to find the fifth order Taylor polynomial and Taylor series for the function f(x) at x = 0. f(x) = 1/(x+2) I tried to just ...
Monday, March 7, 2011 at 9:18pm by KIKSY

Math: Derivatives
If f(x)=g(x)+h(x), then linearity gives f'(x)=g'(x)+h'(x) so f(x)=-x + (3/x) + 1 f'(x)= (-x)' + (3/x)' + (1)' =-1 -3/x² + 0 =-1 -3/x² The second term is obtained by the power rule: d(1/x)/dx = -1/x²
Sunday, April 8, 2012 at 2:56pm by MathMate

derivatives. f(x)=(1/-7x^12) f'(2)=? f'(-1)=?
Friday, January 18, 2008 at 6:47pm by mike

// calculus - derivatives
yours is correct
Saturday, October 24, 2009 at 5:56pm by bobpursley

What are the first and second derivatives of y = (1/x^2)-(1/(x-2)^2)?
Sunday, November 1, 2009 at 8:18pm by Freddy

How do you find the derivative of (6 csc x)/x?
Friday, October 28, 2011 at 1:29am by hannah

What are the first and second derivatives of y= x^(2/3) * (2.5 - x)
Sunday, January 8, 2012 at 6:41pm by Anonymous

what are the first and second derivatives for y= x* (4-x^2)^1/2
Sunday, January 8, 2012 at 6:42pm by Anonymous

what are the first and second derivatives for y= x* (4-x^2)^1/2
Sunday, January 8, 2012 at 10:24pm by Anonymous

What are the first and second derivatives of y= x^(2/3) * (2.5 - x)
Sunday, January 8, 2012 at 10:24pm by Anonymous

Oh crap nvm!
Wednesday, February 15, 2012 at 5:37pm by Jake

Integrate? Meaning?
Thursday, April 26, 2012 at 3:32pm by I Need Help

I agree with e
Thursday, May 31, 2012 at 5:11pm by Damon

Find the derivatives of these: f(x)=√
Tuesday, November 13, 2012 at 11:18pm by alexis

Find the derivatives of the functions k(x)=(x^3+e^x)^4
Monday, February 11, 2013 at 9:27pm by Joe

yup! sloppiness on my part
Tuesday, March 18, 2014 at 11:39pm by Reiny

Pretty easy. Use the fact that the product of the first derivatives of linear functions and their perpendiculars respectively are always -1. This is: m'=-1/(1/2)=-2 Since we can choose an arbitrary function with the imposed properties, it suffices to take g(x)=-2*x q.e.d.
Wednesday, February 10, 2010 at 10:11am by dongo

Sorry to bother you, can you explain the steps to me, so I can see the work and check my work. I thought i had done it wrong, I started my work and then guessed.
Wednesday, March 24, 2010 at 10:50pm by Anonymous

I am having trouble figuring out how to do partial derivatives. I have tried practice problems and have read my textbook but I am still so confused. Could someone please explain how to do this? Thank you.
Thursday, April 21, 2011 at 9:17pm by Hannah

correct, your thinking is right on
Wednesday, November 28, 2007 at 8:38pm by Reiny

find the der of y= x^(lnx) thanks
Tuesday, October 13, 2009 at 5:45pm by Carolina

what do you mean by something squared?
Monday, April 12, 2010 at 11:29pm by John

derivatives: 2. cos teta/ 1+sin^2
Tuesday, January 4, 2011 at 12:18am by gen

find the derivatives F(x)=8ln(x^5-2x)
Wednesday, April 6, 2011 at 3:02pm by melissa

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