I need to show that the function {f(x)= x + cos x} has an inverse without the use of a graph. The professor has asked us to think intuitively about this problem, and I am just at a loss. Any help would be most appreciated, as I am trying not to fail this class. Thanks!(adsbygoogle = window.adsbygoogle || []).push({});

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# Need help to show f(x)=x + cos x has an inverse w/out graph

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