Let the coefficients of the middle terms in the expansion of (1/ 6 + x)^ 4 , (1 - 3 x)^ 2 and (1 - ( /2)x)^ 6...

Question

Let the coefficients of the middle terms in the expansion of (1/ 6 + x)^ 4 , (1 - 3 x)^ 2 and (1 - ( /2)x)^ 6 , > 0, respectively form the first three terms of an A.P. If d is the common difference of this A.P., then 50 - 2d/ ^ 2 is equal to _____.

Accepted Answer

57

JEE Main 2022 Mathematics question

Solution

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