If the coefficients of 2 nd , 3 rd and 4 th terms in the expansion of (1 + x) n are in A. P., then the value of n is

Haryana Police Male Constable 23 Dec 2018 Paper

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If the coefficients of 2^nd, 3^rd and 4^th terms in the expansion of (1 + x)ⁿ are in A. P., then the value of n is

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