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July 26, 2014

Search: Derivatives

Number of results: 296

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
December 1, 2011 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
October 9, 2008 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
March 23, 2010 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
March 7, 2012 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!
September 9, 2007 by Joe

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 ...
November 1, 2011 by Mishaka

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...
July 30, 2007 by COFFEE

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 ...
April 5, 2007 by Amy

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 ...
March 14, 2007 by Amy

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.
April 12, 2012 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.
June 18, 2013 by Robin

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 ...
October 3, 2013 by Daisy

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)
March 11, 2012 by maria

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...
June 13, 2007 by Raj

calculus
derivatives. f(x)=(1/-7x^12) f'(2)=? f'(-1)=?
January 18, 2008 by mike

Math-Derivatives!!!
-4x^4 x^1/2+(-7/(x^2 x^1/2))
September 9, 2010 by Janel

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

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

Maths Derivatives
If y = x ^ n + ( 1 / x ^ n ) prove that ( x^2y'' ) + ( xy' ) - ( n^2y ) = 0
October 25, 2011 by Yousef

Calculus-derivatives
Determine h'(x) for h(x)= [x/(1-x)]^2
February 20, 2012 by Jessi

Derivatives
differentiate and simplify y= (e^x - 1) / x^2
March 25, 2012 by help

derivatives
Applications of derivatives A rectangle has its base on the x axis and its upper two vertices on the parabola y=12 - x^2. What is the largest area the rectangle can have, and what are its dimensions. Support your answer graphically. Thanks. Well, the parabola is symettric ...
November 18, 2006 by Jen

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 ...
March 7, 2011 by KIKSY

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
October 22, 2006 by 413

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

calc
What are the first and second derivatives of y = (1/x^2)-(1/(x-2)^2)?
November 1, 2009 by Freddy

calculus
find the derivatives F(x)=8ln(x^5-2x)
April 6, 2011 by melissa

derivatives
How do you find the derivative of (6 csc x)/x?
October 28, 2011 by hannah

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

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

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

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

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

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

calculus derivatives
Please confirm: {(5x+2)^4/x^2-3x+1)^3}= 20(5x+2)^2(x^2-3x+1)^3 -3x^2(5x+2)^4 (x^2-3x+1)^2/(x^2-3x+1)^6
July 19, 2012 by Laurie

Maths
Find the derivatives of these: f(x)=√
November 13, 2012 by alexis

calculus
Find the derivatives of the functions k(x)=(x^3+e^x)^4
February 11, 2013 by Joe

Derivatives
Find the derivative of xsecy+y^5=5x^3-7
June 26, 2014 by Sarah

Calc--derivatives
find the der of y= x^(lnx) thanks
October 13, 2009 by Carolina

Calculus (derivatives)
Find the derivative of cos^2(4x)
November 3, 2009 by Amanda

calculus
find the derivatives 1. y=sin^3(2x)(cos2x)
January 4, 2011 by gen

calculus
find the derivatives 1. y=sin^3(2x)(cos2x)
January 4, 2011 by gen

calculus
derivatives: 2. cos teta/ 1+sin^2
January 4, 2011 by gen

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

trig derivatives
How do I find the derivative of 6 + 8cosx?
October 27, 2011 by lily

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

Math
Find the derivatives of the function g(t)= cosh^3 t.
October 9, 2012 by Joe

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

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

calculus
derivatives: 3. y= cot^3(2/x) 4. y= csc^5 (1-t+3t^2) 5. y=sec(5x)/tan3x
January 4, 2011 by gen

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

Calculus (derivatives)
find the slopes at the indicated points y = 3 + 5x - 3x^3 (0,3), (1/2, 41/8), (2,-11)
October 13, 2011 by Nemo

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

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

math (2)
Find the first partial derivatives of the function. f(x,y,z) = xe^(y/z) a. fx = ? b. fy = ? c. fz = ?
April 30, 2014 by Mia

math (2)
Find the first partial derivatives of the function. f(x,y,z) = xe^(y/z) a. fx = ? b. fy = ? c. fz = ?
May 1, 2014 by Mia

calculus
Let f be a function that has derivatives of all orders for all real numbers. Assume f(0)=5, f'(0)=-3, f''(0)=1, and f'''(0)=4. Write the third-degree Taylor polynomial for h, where h(x) = integral of f(t)dt from 0 to x, about x=0 for this part, I got 5x-3x^2/2+x^3/6. Then the ...
March 16, 2007 by Meredith

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

Derivatives
Find dy/dx for the function, xy-x-12y-3=0. Is the answer -14,I got this from 1-1-12=0, which solves to -14.
November 5, 2008 by George

calculus
find the partial derivatives du/dx, du/dy and du/dt. u= root (r^2+s^2, r = y + x cos(t), s = x + y sin(t);when x = 0, y = 2, t = 2
October 10, 2011 by Ramesh

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

trig
I need help finding derivatives and antiderivatives. Given: f(x),find f'(x) 1. f(x)-2x^6 2. f(x)= -3x +7 3. f(x)= 3x^2 - 5x 4.f(x)= 1/2x^2 - x + 4
January 12, 2012 by Anna

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?
February 29, 2012 by Melinda

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

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

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

Calculus
Find all first partial derivatives: f(x,y)=e^(xy)cosx
May 31, 2013 by Elyse

Calculus - Anti-Derivatives
How would you find the Integral of (cos(x\8))^3, defined from -(4 x pi)/3) to (4 x pi)/3)
March 14, 2008 by Sean

calculus - (derivatives)
Find the derivative of the function f by using the rules of differentiation. F(x) = 3 x
September 21, 2008 by B <3

Differential Euation
How do you find the primes denote derivatives with respect to x. Such as xy'+ 5y= 7x^2, y(2)= 5
February 15, 2012 by Danielle

Calculus First Derivatives
If f(2) = 2.5 and f'(2) = -2.5, then f(2.5) is approximately... I have no idea how to do this without an equation.
May 31, 2012 by PLEASE HELP

calculus/derivatives
I need to find the derivative and can't do them when they are raised to powers? Thank You. m(x)x^5 - 5x^3+7x -4)^10 (4x^9 +19)^23 this on is tuff!
July 18, 2012 by cathy

Calculus - HELP plz!
Find all of the first partial derivatives of f(x,y,z)=arctan y/xz
June 2, 2013 by Sara

*math (7)
Evaluate the first partial derivatives of the function at the given point. f(x, y) = x^2 + xy + y^2 + 2x - y ; at (-5, 4) fx(-5, 4) = ? fy(-5, 4) = ?
April 29, 2014 by Mia

math (3)
Evaluate the first partial derivatives of the function at the given point.(0,e) f(x,y) = 6e^x ln(y) fx(0,e) = ? fy(0,e) = ?
April 30, 2014 by Mia

Calc.
How do I deal with square roots and derivatives? Like: f(x)= Sqrtx....the derivative. find
July 16, 2008 by Derek

Calculus Derivatives
what's the equations of both lines through the point (2,3) that are tangent to the parabola y=x^2+x
September 22, 2008 by Lisa

differential calculus
use the product rule to find the derivatives of the given function y=(3x^2-8)^2
April 30, 2011 by ash

calculus-derivatives
y=cos^3(12theta) find derivative using chain rule
September 27, 2011 by hailey

Calculus (derivatives)
find an equation of the tangent line to the curve at the indicated point. y = -(x^1/3); (8, -2)
October 13, 2011 by Nemo

calc 3
Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=
September 19, 2012 by Becky

Calc 3
Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=
September 20, 2012 by Becky

Calculus
Find the derivatives of the function f(t)=cosh^2(4t)-sinh^2(4t). Simplify your answer completely.
March 3, 2013 by Mike

maths
find the maximum valu of any of the function without using derivatives 16x+8x+7
June 26, 2014 by sandeep

Math
Find the derivative of: ln(2x/x+1) the answer is 1/x(x+1) but i can't seem to solve it that far. ln [2x/(x+1)] = ln 2 + ln (x) - ln(x+1) Add the derivatives of each term and you get 1/x - 1/(x+1) = [(x+1) - x]/[x(x+1)] = 1/[x(x+1)]
March 18, 2007 by Freddy

Calculus
Find a formula for the derivatives of the function m(x)=1/(x+1) Please help.....Any assistance would be greatly appreciated.
September 12, 2008 by George

Calculus-Derivatives
How is 6#sin(#x-1)/cos^3(#x-1) the derivative of f(x)= 3sec^2(#x-1)? #= Pi (I coulnd't find the symbol...sorry.)
September 28, 2008 by Charles

Pre Calc
f(x,y)=ln(5x^2-7y^3) Find ALL 2nd derivatives. fxx,fxy,fyx,fyy
December 10, 2010 by Sara

derivatives
If the derivative of f is given by f'(x)=ex-3x2, at which of the following values of x does f have a relative maximum value?
January 1, 2011 by lisa

math
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
August 20, 2012 by deel

calculus quick question
g(x)= sqrt(1-4x^2) Can someone help me find the first and second derivatives please!
December 2, 2012 by dt

Calculus
Okay so I have a question on my assignment that says: You are given that tan(y) = x. Find sin(y)^2. Express your answer in terms of x. I know its derivatives, and I've tried taking the derivatives of both etc, and got them both to come out as cos(y)^2, which I know can be ...
October 21, 2006 by Tracy

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?
January 28, 2009 by Anonymous

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).
April 29, 2011 by Hannah

Calculus (Derivatives)
Using the product rule, find the derivative of the following function: (x^1/2 cscx sinx).
November 7, 2011 by Mishaka

math (7)
Find the second-order partial derivatives of the function. f(x,y) = x^5 + x^2y + x + 5 a. fxx = ? b. fyy = ? c. fxy = ? d. fyx = ?
April 30, 2014 by Mia

math (8)
Find the second-order partial derivatives of the function. f(x,y) = x^5 + x^2y^2 + y^4 + x + y a. fxx = ? b. fyy = ? c. fxy = ? d. fyx = ?
April 30, 2014 by Mia

calculus
find the following derivatives: f(x) = (2x+5)/(x^2-3) f'(x)= (2)*(x^2 -3)-(2x+5)*2x/(x^2-3)^2 is that correct??? f(x)= (lnx)(cos x) f'(x)= 1/x*-sinx or do i have to use the product rule?? thank you.
November 9, 2008 by Dan

CALC
find the following derivatives: f(x) = (2x+5)/(x^2-3) f'(x)= (2)*(x^2 -3)-(2x+5)*2x/(x^2-3)^2 is that correct??? f(x)= (lnx)(cos x) f'(x)= 1/x*-sinx or do i have to use the product rule?? thank you.
November 9, 2008 by Dan

chemistry
How would I determine when isomeric dimethylbenzene yields 1 ,2 or 3 mononitro derivatives when treate with HNO3/H2SO4 Thanks in advance
April 29, 2010 by chloe

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