\f16. Given f (x) = x3 - 1, find the derivative of the inverse function at f-1(26) Hint: You'll need to figure out f (? ) = 26 17. Given f (x) = x3 + 2x - 1, and the graph, find the derivative of f-1(2) Hint: Use the graph to figure out f (? ) = 2 18. Given f (x) = sin x, find the derivative of f-1 at x = NIN 19. Find the derivative of f (x) = arcsin (x + 1) 20. Find the derivative of f (x) = arctan ex Sources: The Princeton Review AP Calculus Prep 2021 and Larson & Edwards Calculus ETF 6e