Fill tha value of nif nP3=5nP2
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Answered by
0
Answer:
7
Step-by-step explanation:
n! /(n-3)! =5(n!) /(n-2)!
(n-2)! /(n-3)! =5
(n-2) (n-3)! /(n-3)! =5
n-2=5
n=7
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