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Statement-I: If a in N, then the coeffic...

Statement-I: If `a in N`, then the coefficient of `x^3 and x^a` in `(1+3x +3x^2 +x^3)(1+ x)^a` are equal. Statement-II:If `p and q` be positive integers, then the coefficients of `x^p and x^q` in the expansion of `(1+ x)^(p+q)` will be equal .

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