If \(\rm {^nC_r}={^nC_{r-1}}\) and \(\rm {^nP_r}={^nP_{r+1}}\), the – McqOptions

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1.	If \(\rm {^nC_r}={^nC_{r-1}}\) and \(\rm {^nP_r}={^nP_{r+1}}\), then the value of n is:
A.	3
B.	4
C.	2
D.	5
Answer» D. 5

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