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Question

A function is defined by mapping f:A→B such that A contains m elements and B contains n elements and m > n then number of bijections are ________

a.

ⁿCₘ x m!

b.

ⁿCₘ x n!

c.

0

d.

none of the mentioned

Posted under Discrete Mathematics

Answer: (c).0

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Q. A function is defined by mapping f:A→B such that A contains m elements and B contains n elements and m > n then number of bijections are ________

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