Mathematics help please! Watch

tom249
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Report Thread starter 8 years ago
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Hi,
i've been trying to work on this question but can't get anywhere with it. Any help at all would be greatly appreciated please
(excuse how it's written - hard to write maths on here)

Deduce that:
2n choose n = (sum from k=0 to n) (n choose k)^2

As i said, any help would be appreciated greatly.
Many thanks
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JamesyB
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Report 8 years ago
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(Original post by tom249)
Hi,
i've been trying to work on this question but can't get anywhere with it. Any help at all would be greatly appreciated please
(excuse how it's written - hard to write maths on here)

Deduce that:
2n choose n = (sum from k=0 to n) (n choose k)^2

As i said, any help would be appreciated greatly.
Many thanks
This wouldn't happen to be coursework per chance?
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