I am working through a mathematics olympiad problem book, and I am asked to prove that n choose r, where n is the row number and r is the term number in the row is equal to that term. Can someone please give me a hint? I have not been able to find ANY proofs on the internet through a basic search, just sites that acknowledge the relationship between binomial coefficients/theorem and pascal's triangle.(adsbygoogle = window.adsbygoogle || []).push({});

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# Binomial coefficients and pascal's triangle

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