The question is asking to find the derivative of the function:

y=4-7e^-x^9

I am confused because there are so many exponents. It would really help to see the work with the answer.

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- July 13th 2011, 07:31 AMStarDancer19Derivatives of Functions
The question is asking to find the derivative of the function:

y=4-7e^-x^9

I am confused because there are so many exponents. It would really help to see the work with the answer. - July 13th 2011, 07:35 AMSironRe: Derivatives of Functions
You have to be clearer.

Is it:

? ...

If yes, use the chain rule.

The derivative of

Let - July 13th 2011, 07:38 AMCaptainBlackRe: Derivatives of Functions
- July 13th 2011, 07:39 AMStarDancer19Re: Derivatives of Functions
Sorry about the clearness. It is: 4- [7e^(-x^9)]

I understand how to use the chain rule to find that u=-x^9

What I need help on is actually seeing the work of the rest - July 13th 2011, 07:40 AMStarDancer19Re: Derivatives of Functions
Sorry about that, but the question I am asking is the first suggestion you had.

- July 13th 2011, 07:43 AMe^(i*pi)Re: Derivatives of Functions

In your example you have

======================================

Alternatively:

You have

======================================

Both notations depict the chain rule so pick whichever is easier to understand - July 13th 2011, 08:10 AMHallsofIvyRe: Derivatives of Functions