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The domain of f(x)=cosx
must be restricted to all real numbers in order for the function to have an inverse function. The domain of g(x)=arccos(x)
is −1≤x≤1
and its range is 0≤x≤π
.
is this correct ?

The domain of fxcosx must be restricted to all real numbers in order for the function to have an inverse function The domain of gxarccosx is 1x1 and its range i class=

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AnimalPost

Answer:

Not completely sure for the rest, but I believe the range is incorrect: the range represents y-values, not x-values.

So it should be 0 ≤ y ≤ π

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