6) (15 pts) Find $f'(x)$ for the following: (show all of your work) a) $f(x) = x^2 + e^{-x}$ b) $f(x) = \sqrt{4x^4 - x}$ c) $f(x) = cos^4(x)$
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f(x) = x^2 + e^(-x) Therefore, the function f(x) is x^2 + e^(-x). Show more…
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