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Likurg_2 [28]
4 years ago
7

Simplify the following expression.

Mathematics
1 answer:
erma4kov [3.2K]4 years ago
7 0

Answer:

1

Step-by-step explanation:

Using the definition

nC_{r} = \frac{n!}{r!(n-r)!}

where n! = n(n - 1)(n - 2)......

Thus

4C_{4}

= \frac{4!}{4!(4-4)!} ← cancel 4! on numerator and denominator

= \frac{1}{0!} { 0! = 1 ]

= \frac{1}{1}

= 1

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7 0
1 year ago
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Shkiper50 [21]
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