In the expansion of (1+x)m(1−x)n, the coefficients of x and x2 are r – InterviewSolution

1.	In the expansion of (1+x)m(1−x)n, the coefficients of x and x2 are respectively 3 and -6. Then m equals :
Answer» In the expansion of $(1 + x)^{m} (1 - x)^{n}$ , the coefficients of x and $x^{2}$ are respectively 3 and -6. Then m equals :

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