Let the sum of the coefficient of first three terms in the expansion of x-3x2n; x=0, n∈N be 376. Then, the coefficient of x4 is equal to:

Question

Let the sum of the coefficient of first three terms in the expansion of

{(x - \frac{3}{x^{2}})}^{n}; x = 0, n \in N

376

. Then, the coefficient of

x^{4}

is equal to:

Correct Answer

405

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