If the number of terms in the expansion of (1-2/x+4/x^2)^n,x\neq0, is 28 , then the sum of the coefficients of all the terms in this expansion, is [Main 2016]

Binomial Theorem Part 1

Section: Mathematics

Question : 74 of 100

Marks: +1, -0

If the number of terms in the expansion of (1−

)n,x≠0, is 28 , then the sum of the coefficients of all the terms in this expansion, is

[Main 2016]

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