$\displaystyle f(x)= sin^4(x)$

What does 'u' in this situation equal?

$\displaystyle sin(x) $or$\displaystyle x^4$

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- Mar 10th 2010, 08:58 PMZanderistAnother Chain Rule Question.
$\displaystyle f(x)= sin^4(x)$

What does 'u' in this situation equal?

$\displaystyle sin(x) $or$\displaystyle x^4$ - Mar 10th 2010, 09:07 PMPulock2009d/dx(x^n)=nx^(n-1)dx/dx
- Mar 11th 2010, 03:41 AMHallsofIvy
- Mar 13th 2010, 02:44 PMZanderist
I'd like to add on to this.

What are the steps to:

$\displaystyle f(x)=7cos(cos(x))$ - Mar 13th 2010, 02:50 PMskeeter
$\displaystyle \frac{d}{dx} \tan{u} = \sec^2{u} \cdot \frac{du}{dx}

$

... in future, start a new problem with a new thread.

more examples of the chain rule ...

http://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/chainruledirectory/ChainRule.html - Mar 13th 2010, 03:31 PMskeeter