Evaluate (n!)/((n-r)!) , when n = 7 , r ...

Evaluate `(n!)/((n-r)!)` , when n = 7 , r = 4

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ARIHANT MATHS-MONOTONICITY MAXIMA AND MINIMA-Exercise For Session 1

Evaluate (n!)/((n-r)!) , when n = 7 , r = 4
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