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The value of ""^nPr, and ""^nCr will be ...

The value of `""^nP_r`, and `""^nC_r` will be equal when

A

n=r

B

r=`n/2`

C

r=1

D

r=0 or !

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The correct Answer is:
D
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OMEGA PUBLICATION-PERMUTATIONS AND COMBINATIONS-Multiple Choice Questions (MCQs)
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