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July 30, 2014

Search: Maths Derivatives & Calulus

Number of results: 5,953

Maths Derivatives & Calulus
1) Find d^2y / dx^2 given that y^3 - x^2 = 4 2)If y = x + ( 1 / x ) , prove that x^2 . y'' + xy' a^2 . y = 0 3) Find dy/dx for the following function. cos ( x - y ) = ( y ) ( 2x + 1 ) ^3 4)Find the values of A and B that make f(x) differentiable at x = 0 f(x) = A + 2x + 3...
October 21, 2011 by Yousef

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

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

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

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

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

calulus
lim tanx - x x->0 x^2
August 15, 2010 by Lereesa

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

Calulus 2
Solve the differential equation: dy/dx = y^2 + y
October 30, 2012 by Heather

Calulus
At what interval is 2x^3+0x^2-54x+6 increasing?
May 2, 2013 by Lauren

Maths
Find the derivatives of these: f(x)=(√(x))sinPix Also: f(x)=√(Cosx+sinx) Steps would be greatly helpful as I will be able to use them as reference. Thank you.
November 13, 2012 by Alexis

Pre calulus only 15 min left HELP!
((ln(x))^1/2)/(ln(x^1/2))=6 solve for x
March 3, 2013 by tyler

Calulus
[(5.2)^x (5.2)^-7]/(5.2)^-5 That whole thing is (5.2)^9 But I have no idea how to find the exponent x?
March 24, 2009 by Callie

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

Maths Calculus Derivatives & Limits
Using the definition of the derivative evaluate the following limits 1) Lim h---> 0 [ ( 8 + h )^1/3 - 2 ] / h 2) Lim x ---> pi/3 ( 2cosx - 1 ) / ( 3x - pi)
October 25, 2011 by Yousef

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

Calulus
Given \displaystyle \int_0^{\frac{3\pi}{2}} x^2\cos x \, dx = a - \frac{b\pi^2}{c}, where a, b and c are positive integers and b and c are coprime, what is the value of a + b + c?
March 10, 2013 by John

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

Calulus
Solve the triangle.Round lenghts to the nearest tenth and angle measurements to the nearest degree. B = 43 C = 107 B = 14
November 19, 2007 by kelly

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

Calulus Completely lost
Find the indicated one-sided limit, if it exists 1.lim f(x) and lim f(x), where x->0^+ x->0^- 2. f(x) = [2x if x is less than 0] [x^2 if x is greater than or equal to 0]
February 8, 2011 by Anonymous

calulus
A plane flying at a constant rate of 200km/hr. What is the distance travelled by the plane 3mintues after it passes the observation point.
November 3, 2012 by Daniella

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

calulus
The volume of the solid obtained by rotating the region enclosed by y=x^2 y=2x about the line x=2 can be computed using the method of disks or washers via an integral The volume is V
May 4, 2012 by cjones

Calulus
Use the Midpoint Rule with n =3 to approximate the integral −1−8(10x−9x2)dx
May 12, 2013 by Ryan

Maths Calculus
We want to build a rectangular cardboard box with no top and of given volume V using the least quantity of cardboard. Find the length of the box's edges by fnding the minimum of the total surface function. Verify that the point you found is indeed a minimum applying the second...
April 25, 2013 by Mohit

calulus
a particle is moving along the cure y=sqrt x. as the particle passes through the point (4,2), its x-coordinate increase at a rate of 3 cm/s. how fast is the distancefrom the particle to the origin changing at this instant?
November 19, 2009 by jackie

Maths Calculus Derivatives
Find the first derivative for the following functions 1) f(x) = sin(cos^2x) cos(sin^3x) 2) f(x) = ( tan 2x - tan x ) / ( 1 + tan x tan 2x ) 3) f(x) = sin { tan ( sqrt x^3 + 6 ) } 4) f(x) = {sec^2(100x) - tan^2(100x)} / x
October 22, 2011 by Yousef

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

Math
Make a complete re search project on maths is interconnected with other subject i.e. Maths Vs computer using art with maths.
June 5, 2012 by Shivansh Tomar

maths letaracy,history,geography and life science
im going to grade 10 next year,and i want to be a psychologist and im going for maths letaracy and history feild im realy not good with maths and i just found out a few weeks ago that i need pure maths to do psychology.i dont know what to do now ,i also dont know the jobs ...
October 26, 2013 by khanyisa maringa

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

calulus
The top and bottom margins of a poster are 8 cm and the side margins are each 6 cm. If the area of printed material on the poster is fixed at 380 square centimeters, find the dimensions of the poster with the smallest area. find the width and height
March 19, 2012 by Mandy

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

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

Maths B
Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
May 24, 2012 by Anna

Maths B
Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
May 24, 2012 by Anna

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

Calulus
Hi there I need help with one of the problem from my homework package. This week for my calculus class, we were learning how to do partial derivative and finding the tangent of the plane. So I do not know how to approach this problem. Please help me by how to derive this ...
October 25, 2009 by shylo

Calculus Graph help!!!
I need help with a calulus graph and figuring out its equation but it wont let me post the picture of the graphs here. so will someone who understands Calculus and their graphs super well please email me k m k underscore horse lover at hot mail dot com. no spaces and an actual...
May 2, 2012 by kelsey

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

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

Calulus
Consider the following function. f(t) = 3t2 − 3 (a) Find the average rate of change of the function below over the interval [3, 3.1]. (b) Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. (at t = 3) (at t = 3.1)
October 15, 2010 by Sophie

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

maths
i am told to do a project in maths it should involve a maths consept.pls help as to what should i do?
November 18, 2007 by chandini

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

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