Why is (15 over 4) = (15 over 11)

Not division

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- May 9th 2014, 06:15 PM #1

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- May 9th 2014, 06:20 PM #2

- May 9th 2014, 06:21 PM #3

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- May 9th 2014, 06:31 PM #4

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## Re: Why is (15 over 4) = to (15 over 11)

is the "binomial coefficient. It is defined as . So and . They are the same because 11+ 4= 15.

(If you really have no idea what the**notation**means, where did you see this problem?)

- May 9th 2014, 06:33 PM #5

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- May 9th 2014, 06:35 PM #6