How can I do this differentiation to this function ? $\displaystyle f(x) = e^{cos(x)+sin(x)} $ Thank you very much!
Last edited by mr fantastic; May 25th 2009 at 05:02 AM. Reason: Fixed the latex: ^{...}, NOT ^(...)
Follow Math Help Forum on Facebook and Google+
Use the chain rule with $\displaystyle u=\cos x +\sin x$ and $\displaystyle f(u(x))=e^{u(x)}$ $\displaystyle \frac{df}{dx}=\frac{df}{du}\frac{du}{dx}$
If you're doing the OU course MST121 the answer is explained in book C2. I will find the page when at home.
View Tag Cloud