Anonymous
Anonymous asked in Science & MathematicsMathematics · 7 years ago

how many surjective mapping from the set containing m element to the set containing n element?

A and B are two sets such that |A|=m, |B|=n . How many surjective mapping form A to B

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  • 7 years ago
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  • Anonymous
    7 years ago

    Minimum number of mappings = n ( If m< n or m = n)

    Maximum number of mappings = m ( If m> n)

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  • Ramesh
    Lv 4
    7 years ago

    no. of mappings = 2^(m.n).............................answer

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