1.

बताओ निम्नलिखित कथन सत्य हैं या असत्य- (i) `.^(0)C_(0)=0` (ii) `.^(2)C_(1)=.^(1)C_(2)` (iii) `.^(5)C_(2)+.^(6)C_(2)=.^(6)C_(3)` (iv) `.^(6)C_(4)=.^(6)C_(2)`

Answer» Correct Answer - (i) n (ii) `2^(n)-1` (iii) `n!` (iv) `(n!)/(2!(n-2)!)`


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