If in the expression of (1 + x ) m (1 – x ) n , the coefficient of x and x 2 are 3 and –6…
Mathematics · JEE Advanced · NTA Exams — Binomial Theorem And Its Simple Applications
If in the expression of (1 + x)m (1 – x)n, the coefficient of x and x2 are 3 and –6 respectively then m is
- 6
- 9
- 12
- 24 .
Answer
(B) 9
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