Question: ex +e-x 1. Let f(x) = ex e-x (a) Find the largest domain and range of the function f so that f is bijective.

ex +e-x 1. Let f(x) = ex e-x (a) Find the largest

ex +e-x 1. Let f(x) = ex e-x (a) Find the largest domain and range of the function f so that f is bijective. (b) Find the inverse function f-(x) and express it in terms of a logarithm function. (c) Sketch the graphs both of the functions f(x) and f-1(x).

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