Question: (a) Show that f(x) = 2x + cos x is one-to-one. (b) What is the value of f 1(1)? (c) Use the formula from Exercise

(a) Show that f(x) = 2x + cos x is one-to-one.
(b) What is the value of f –1(1)?
(c) Use the formula from Exercise 67(a) to find (f –1)’ (1)

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