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Let f:XrightarrowY and g:YrightarrowZ. P...

Let `f:XrightarrowY` and `g:YrightarrowZ`. Prove that gof is bijective if both f and g are bijective. Also prove that `(gof)^(-1)=f^(-1)og^(-1)`.

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The correct Answer is:
`f^(-1)-og^(-1)`
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