you take f(g(x)) and g(f(x)) of the two functions and the answers should be the same, if the answers are different they are not inverses.
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The inverse of the inverse is the original function, so that the product of the two functions is equivalent to the identity function on the appropriate domain. The domain of a function is the range of the inverse function. The range of a function is the domain of the inverse function.
The original function's RANGE becomes the inverse function's domain.
The inverse of the cubic function is the cube root function.
range TPate
No, an function only contains a certain amount of vertices; leaving a logarithmic function to NOT be the inverse of an exponential function.