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Let A={a , b , c , d}a n df: AvecA be gi...

Let `A={a , b , c , d}a n df: AvecA` be given by `f={(a , b),(b , d),(c , a),(d , c)},` write `f^(-1)dot`

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`f: A rightarrow A{(a, b),(b, d),(c, a),(d, c)}`

Then `{f}^{-1}` is given by

`f^{-1}: A rightarrow A={(b, a),(d, b),(a, c),(c, d)}`

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