Question

The value of nC is calculated using the formula
(a) n! 7 (n-r)!
(b) n! (r! x (n-r)!)
(c) (n-r)! /r!
(d) None of these
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Answer 1

Answer:

The value of nC is calculated using the formula

(a) n! 7 (n-r)!

(b) n! (r! x (n-r)!)

(c) (n-r)! /r!

(d) None of these

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