Problem 38E

a Show that f is one-to-one. b Use Theorem 7 to find (f1)(a). c Calculate f1(x) and state the domain and range of f1. d Calculate (f1)(a) from the formula in part c and check that it agrees with the result of part b. e Sketch the graphs of f and f1 on the same axes. f(x)=1(x1),x1,a=2

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