Question

what is 6c2? 15 8 12 30

Explanation:

Step1: Recall the combination formula

The combination formula is \(C(n,r)=\frac{n!}{r!(n - r)!}\), where \(n = 6\) and \(r=2\).

Step2: Substitute values into the formula

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Step3: Simplify the expression

Cancel out the \(4!\) terms. Then \(\frac{6\times5}{2\times1}=\frac{30}{2}=15\)

Answer:

15