Let y=2e^cos(x)

A.) Calculate dy/dx and d^2 y/ dx^2

Show all the work.

If anyone can help me with this problem it says to show all the work thankyou!!! very urgent help pleaseee!!!!

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- January 2nd 2008, 02:44 PMmmkextreme_1Urgent Help PLEASE ANYONE!!!!
Let y=2e^cos(x)

A.) Calculate dy/dx and d^2 y/ dx^2

Show all the work.

If anyone can help me with this problem it says to show all the work thankyou!!! very urgent help pleaseee!!!! - January 2nd 2008, 03:18 PMKrizalid
Recall that . (Chain Rule.)

- January 2nd 2008, 03:22 PMmmkextreme_1
- January 2nd 2008, 04:23 PMtopsquark
Are you saying you have to do this from the limit definition? In terms of the "shortcuts" the only way you can do this problem is using the chain rule. You must have covered that at some point.

Now use the product rule and chain rule again to find the second derivative.

-Dan - January 2nd 2008, 05:03 PMmmkextreme_1
- January 2nd 2008, 05:34 PMtopsquark
- January 2nd 2008, 05:45 PMmmkextreme_1
I don't get it can you tell me what you got?

- January 2nd 2008, 09:43 PMtopsquark