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Question Number 31046 by abdo imad last updated on 02/Mar/18
prove that C_n ^o C_n ^p +C_n ^1 C_(n−1) ^(p−1) +...C_n ^p C_(n−p) ^0 =2^p C_n ^p .
provethatCnoCnp+Cn1Cn−1p−1+…CnpCn−p0=2pCnp.

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