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Find the inverse function of f(x)= 1+2cos(x) and then find the domain and the range of...

Find the inverse function of f(x)= 1+2cos(x) and then find the domain and the range of the function of both f and f^-1??

Find the inverse function of f(x)=sqrt(3-e^2x) and then find the domain and the range of the function of both f and f^-1??

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