1.

The co-efficient of `x` in the expansion of `(1-x+2x^2)^11` isA. `.^(12)C_(3)`B. `.^(13)C_(3)`C. `.^(12)C_(8)+4.^(12)C_(10)+6.^(12)C_(9)`D. `.^(12)C_(3)+3.^(13)C_(3)+.^(14)C_(4)`

Answer» Correct Answer - A


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