The sum of the binomial coefficients of -2 x-1-x -n is equal to 243- value of n is

The correct option is A 5Substituting x=1 for sum of coefficients, we get nbsp; 3^n=243 3^n=3^5 Hence nbsp; n=5 ...

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The sum of the binomial coefficients of ${[2 x + \frac{1}{x}]}^{n}$ is equal to 243. value of n is

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