A homework problem asks for a sketch of the graph of the inverse of f (x) = x + cos x
Chapter 1, Problem 4(choose chapter or problem)
A homework problem asks for a sketch of the graph of the inverse of f (x) = x + cos x. Frank, after trying but failing to find a formula for f 1(x), says its impossible to graph the inverse. Bianca hands in an accurate sketch without solving for f 1. How did Bianca complete the problem?
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