What is equivalent to 9C5
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8
Answer:
9C5=126
Step-by-step explanation:
Substitute n and r values in below nCk formula
nCk =n!
k! (n - k)!
9 CHOOSE 5 =9!
5! (9 - 5)!
step 3
Find the factorial for 9!, 5! & 4!, substitute the corresponding values in the below expression and simplify.
9C5 =9!
5! (4)!
=1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9
(1 x 2 x 3 x 4 x 5) (1 x 2 x 3 x 4)
=6 x 7 x 8 x 9
24
=3024
24
9C5 = 126
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Answer:
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