If f:A→A and g:A→A are two bijections, then prove that (i)fog is an injection (ii)fog is a surjection.

If $f : A \to A$ and $g : A \to A$ are two bijections, then prove that (i)fog is an injection (ii)fog is a surjection.

Matching exercise

Match the items on the right to the items on the left.

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