JEE Mains · Maths · STD 11 - 7. binomial theoram
Let he sum of the coefficient of first three terms in the expansion of \(\left(x-\frac{3}{x^2}\right)^n ; x\ne 0, n \in N\) be 376 . Then, the coefficient of \(x^4\) is equal to:
- A 405
- B 402
- C 390
- D 404
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Correct Answer
(A) 405
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