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In the expansion of `(3^(-x//4)+3^(5x//4))^(pi)`the sum of binomial coefficient is 64 and term with the greatestbinomial coefficient exceeds the thirdby `(n-1)`, the value of `x`must be`0`b. `1`c. `2`d. `3`A. `x` is integerB. value of `n` is `4`C. `n` is a composite numberD. `n` and `x` are so prime |
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Answer» Correct Answer - A::C::D Given that sum of all binomical coefficient is `64` so putting `3^(-x//4) = 3^(9x//4) = 1`. `(1+1)^(n)=64 :. 2n^(2) = 64 :. n = 6` |
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