Question: This is for a combinatorics course so solve combinatorically 2. Give a combinatorial proof of the following identity: n-k F. 1 ) (1 7.m )

This is for a combinatorics course so solve combinatorically

2. Give a combinatorial proof of the following identity: n-k "F. 1 ) (1 7.m ) = (2K"+1 ) m=k+1 If you get stuck for ideas on this problem, you may find it helpful to revisit As- signment #1.]

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