Question

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3. (a) If "Pn-2 = 60, then find the value of n.​

Answer 1

Answer:

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Answer 2

Answer:

"Pn - 2 = 60

{n-in-2)} !

(n-n+2)!

n/2! = 60

n!= 60 x 2 !

n! = 60 x 2 × 1= 120

n!= 5!

On comparing

60 n! 11

= 60

n = 5

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