Question: please help with 7 and 8 7. Let f(x) = x3+3x+4; then, f is an invertible function. Find the derivative of f (x) at x
please help with 7 and 8

7. Let f(x) = x3+3x+4; then, f is an invertible function. Find the derivative of f (x) at x = 4. (Hint: It is very difficult to find f- directly, so use the inverse function theorem instead, as in the previous problem.) 8. Compute the derivative of f(x) = In(In(x2))
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