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Leonie
Mathematics
7 February, 09:01
What is the value of 9C4
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Malakai
7 February, 09:19
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Step-by-step explanation:
Recall the formula nCr=n! { (n-r) ! r!}
Here, n=9, r = 4
9C4=9! / { (9-4) ! 4!
=9! / (5! 4)
= 362880 / (120 * 24)
=126
Awnser is 126
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