Tuesday

July 29, 2014

July 29, 2014

Posted by **Jacob** on Saturday, September 18, 2010 at 1:36am.

dh

dx

x = 4 ,

h (x) = (x^(-1/2) + 7x)(9 - x^-1)

very weird.. i know how to do it, i used product rule and got an answer in decimal but the website is not accepting it. Can any one help me?...

- CALCULUS -
**drwls**, Saturday, September 18, 2010 at 2:29amLet's multiply it out and not use the product rule. The answer should be the same.

h(x) = 9x^(-1/2) -x^(-3/2) +63x -7

dh/dx = -(9/2)x^(-3/2) +(3/2)x^(-5/2) + 63

dh/dx @ x=4 = (-9/2)(1/8) +(3/2)(1/32)+63

= -9/16 +3/64 +63

**Related Questions**

Math, Calculus - Find the derivative of the function. y= xcosx - sinx What's the...

Calculus - How do I use the chain rule to find the derivative of square root(1-x...

Calculus - How do I use the product rule to solve these two questions. Much ...

Calculus - Use the Product Rule to find the derivative of the function. f(x) = (...

calculus - derivative of f(x)=arctan(x^2-x) is it the product rule or the chain ...

calculus - What is the DERIVATIVE of: ln x^2 * ln 6 -(product rule)

Calculus - y= ln3x *e^2x^2 + sin5x^2 find the derivative. i know what to do. ...

Calculus - Find the derivative of y with respect to x. y= [(x^5)/5]lnx-[(x^5)/25...

calculus - Please help. Applying the chain rule, how do I find the derivative of...

Calculus/Derivatives - In addition, can you walk me through how to get the ...