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In the expansion of (3^(-x//4)+3^(5x//4)...

In the expansion of `(3^(-x//4)+3^(5x//4))^(n)` the sum of binomial coefficient is 64 and term with the greatest binomial coefficient exceeds the third by `(n-1)` , the value of `x` must be `0` b. `1` c. `2` d. `3`

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