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April 18, 2014

Search: derivatives

Number of results: 675

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

math
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

Math-Derivitives
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

calculus
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

calculus
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

math
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

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

derivatives
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

math
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

derivatives
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

Calculus
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

calculus
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

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
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

Calculus/Derivatives
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

Derivatives
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

Calc. Checking Answer
a. correct b.Somehow I get the negative of your result. See http://calc101.com/webMathematica/derivatives.jsp#topdoit
Wednesday, April 6, 2011 at 5:36pm by bobpursley

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

math
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. http://math2.org/math/derivatives.htm
Thursday, October 9, 2008 at 12:52am by bobpursley

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
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

Calculus
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

derivatives
[ 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

Calculus AB
http://www.jiskha.com/display.cgi?id=1292545967 list of common derivatives http://www.ecalc.com/math-help/worksheet/calculus-derivatives/
Thursday, December 16, 2010 at 7:28pm by TutorCat

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

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

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

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

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

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

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

trig derivatives
-8sinx
Thursday, October 27, 2011 at 11:21pm by Reiny

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

Calculus
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

calculus
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

calc
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

Math-Derivatives.
good job
Wednesday, March 24, 2010 at 10:50pm by Reiny

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

trig derivatives
How do I find the derivative of 6 + 8cosx?
Thursday, October 27, 2011 at 11:21pm by lily

derivatives
How do I find the 2nd derivative of x^(-1/15)
Friday, November 4, 2011 at 1:56am by Jacob

Calc
What are the first and second derivatives of y= x-3x^(1/3)
Sunday, January 8, 2012 at 6:40pm by Anonymous

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

Derivatives (check answer)
atsa right-a
Monday, September 17, 2012 at 4:23pm by Steve

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

Derivatives
I'm not sure if this is correct. Can someone clarify thanks.
Thursday, March 14, 2013 at 11:28am by Mark

Derivatives
I have taken that into consideration; thank you!
Thursday, March 14, 2013 at 11:28am by Mark

Derivatives
Oops I meant 4x^3 + x^2 - 12x + 1/ ((x^2+1)^3)
Monday, May 6, 2013 at 11:42am by Alaina

derivatives - oops
d/dx sinx = cosx
Tuesday, March 18, 2014 at 11:39pm by Steve

Calculus
Find a formula for the derivatives of the function m(x)=1/(x+1) IS the answer -1/(x+h)(x+h+1)
Saturday, September 13, 2008 at 3:50pm by George

Calc
What are the derivatives? Thanks a) y = log(base2)(4-9x) b) y = x^(8x)
Monday, October 20, 2008 at 4:15pm by Michael

Partial Derivatives
nvrm I figured it out myself
Monday, October 12, 2009 at 8:16pm by Anonymous

Calculus (derivatives)
Find the derivative of cos^2(4x)
Tuesday, November 3, 2009 at 5:41pm by Amanda

calculus
find the derivatives 1. y=sin^3(2x)(cos2x)
Tuesday, January 4, 2011 at 12:17am by gen

calculus
find the derivatives 1. y=sin^3(2x)(cos2x)
Tuesday, January 4, 2011 at 12:18am by gen

Calculus(derivatives)
f(x)=7cosx+6tanx, find f'(x)and f'(5pie/4)
Thursday, February 24, 2011 at 7:59pm by Daniel

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

derivatives
how do u find the derivative of (csc x)^7 -cos 4x???
Thursday, October 27, 2011 at 11:57pm by hannah

Calculus (Derivatives)
I too was able to come to the derivative of 500/x^2
Tuesday, November 1, 2011 at 2:37pm by Rodney

Calculus-derivatives
Set the derivative equal to zero.
Wednesday, February 29, 2012 at 12:16am by David

Calculus-derivatives
A is your answer because what you have there is the product rule[F'(x)*G(x)+G'(x)*F(x)].
Thursday, March 8, 2012 at 3:26am by Anonymous

Anti-Derivatives
find the antiderivative of f(x) = x^3(x-2)^2 Someone help me please!
Thursday, April 26, 2012 at 3:32pm by I Need Help

Derivatives ~ Calculus
If dy/dx = (1 + x)/(xy), x>0, and y=-4 when x=1, then when x=3, y= what?
Tuesday, June 5, 2012 at 6:27pm by Hannah

calc
find the derivatives of the given functions. g(t)=sqrt t(1+t)/t^2
Tuesday, February 5, 2013 at 12:51am by Jake

Calculus
take derivatives, so the limit is 2/√(4u+1) / 1 = 2/3
Monday, September 16, 2013 at 1:32pm by Steve

Derivatives
What is f ''(x) and f ''''(x) of f(x)= e^-x^2 f"(x) = -e^-x^2(2x) F""(x)= -2e^-x^2 + 2xe^x^2 and also what is integral [0 to 2] f(x) dx
Sunday, October 22, 2006 at 11:39am by 413

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

calculus
Find the first and second derivatives of the function. h(x) = sqrt x^2 + 1
Tuesday, October 14, 2008 at 7:20pm by Vishnu

Derivatives
Find the derivative of g(t)=8t^2+9t at t=1 algebraically... g'(1)= _________
Monday, February 14, 2011 at 3:06pm by Cad

derivatives
I did use the chain rule in finding the derivative of (csc x)^7
Thursday, October 27, 2011 at 11:57pm by Reiny

Calc
what are the first and second derivatives of y= sinx - 3^1/2 cos x for x in [0,2pi]
Sunday, January 8, 2012 at 6:42pm by Anonymous

Calculus
The derivatives are messy. f = 2x/(1+x^2) f' = -2(x^2 - 1)/(1+x^2)^2 f'' = 4x(x^2 - 3)/(1+x^2)^3 f''' = -12(x^4 - 6x^2 + 1)/(1+x^2)^4 ...
Thursday, February 9, 2012 at 10:06pm by Steve

Calculus-derivatives
f(x) = (x-1)^(2/3)*(x+3) What are the critical numbers? the derivative would be =2/3(x-1)^(-1/3)(x+3) + (x-1)^2/3 What do I do next?
Wednesday, February 29, 2012 at 12:16am by Melinda

science
find derivative of f(x)=1/sqx^2+1 by using the defination of derivatives
Saturday, March 10, 2012 at 8:44am by ibk

calculus-derivatives
:D I'm so happy! Never thought to factor that out x) thank you!
Thursday, March 15, 2012 at 1:39am by mary

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

Calculus - Anti-Derivatives
Oh. Thank you, Damon, and Drwls. That really helped me out.
Friday, March 14, 2008 at 5:55pm by Sean

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