I. Investigate whether the following functions are even or odd:
(a) f(x) = x3
(b) f(x) = cos x
II. State the mean value theorem
III. (a) Find the derivative of the function y = 2x2 + 12/x2 when x = 2
(b) f(x) = -3/x-7. Find the inverse of the function.
Iv. Consider the function f(x) = erx Determine the values of r so that f satisfies the equation f"(x) + f'(x) - 6f(x) = 0.
(a) The function is odd, since .
(b) The function is even, since .
2. The mean value Theorem states the following: Suppose that function is continuous on the closed interval and is differentiable on the open interval . Then there exists the point such that .
3. (a) The derivative of the function is: . After substituting we receive: .
(b) We receive: . It yields: . It can be also rewritten as: .
4. We substitute and receive: ; The solutions are: and .
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