If the number of terms in the expansion of (1 - 2/x + 4/(x²))ⁿ, x ≠ 0, is 28, then the sum of the coefficients of all the terms in this expansion, is:

Binomial Theorem and Its Simple Applications: JEE Main 2016 Mathematics question

JEE Main 2016 · Session, Shift 1 · Q2975

JEE Main 2016Session, Shift 1MathematicsEasyBinomial Theorem and Its Simple Applications131× since 2002

If the number of terms in the expansion of

{\left( {1 - {2 \over x} + {4 \over {{x^2}}}} \right)^n},\,x \ne 0,

is 28, then the sum of the coefficients of all the terms in this expansion, is :

JEE Main 2016 · Session, Shift 1 · Q2975

JEE Main 2016Session, Shift 1MathematicsEasyBinomial Theorem and Its Simple Applications131× since 2002

If the number of terms in the expansion of

{\left( {1 - {2 \over x} + {4 \over {{x^2}}}} \right)^n},\,x \ne 0,

is 28, then the sum of the coefficients of all the terms in this expansion, is :