1.

.^(n)C_(0) + .^(m+1)C_(0) + .^(m+2)C_(2) "……." + .^(n)C_(m) is equal to :

Answer»

`.^(n+1)C_(n+1)`
`.^(n+1)C_(m)`
`.^(n-1)C_(m+1)`
`.^(n+1)C_(n-m)`

ANSWER :A


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