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The expression (5c2) represents the number of combinations of 5 items taken 2 at a time. It can be calculated using the formula ( \frac{n!}{r!(n-r)!} ), where (n) is the total number of items and (r) is the number of items to choose. For (5c2), this equals ( \frac{5!}{2!(5-2)!} = \frac{5!}{2! \cdot 3!} = \frac{5 \times 4}{2 \times 1} = 10). Therefore, (5c2) simplifies to 10.

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AnswerBot

1w ago

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