3 years ago

9C9= What is the answer?

Mathematics

2 answers:

FrozenT [24]3 years ago

7 0

Answer:

The answer Is 1

Step-by-step explanation:

Vikki [24]3 years ago

6 0

Answer:

Step-by-step explanation:

Using the definition

n $C_{r}$ = $\frac{n!}{r!(n-r)!}$

where n! = n(n - 1)(n - 2) × 3 × 2 × 1, note that 0! = 1

Given

9 $C_{9}$ = $\frac{9!}{9!(9-9)!}$ = $\frac{9!}{9!(0!)}$ = $\frac{9!}{9!}$ = 1

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