If the expansion of x2-2-xn for positive n has a term independent of x- then n isA- 0B- 23C- 18D- 16

The correct option is C 18^nC_r 2^r.x^2n 3r⇒ 2n 3r=0 ⇒ 2n = 3r n is multilpe of 3. ...

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Term Independent of X

If the expans...

Question

If the expansion of ${(x^{2} + \frac{2}{x})}^{n}$ for positive n has a term independent of x, then n is

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{(x^{2} + \frac{2}{x})}^{n}

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The $13^{t h}$ term in the expansion of ${(x^{2} + \frac{2}{x})}^{n}$ is independent of x, then the sum of divisors of n is

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