JEE Advanced Mathematics question

If the coefficient of the 5th term be the numerically greatest coefficient in the expansion of then the positive integral value of is

(A)9
(B)8Correct
(C)7
(D)10

Answer: (B)

Solution

The numerical values of the coefficients of are , which are largest at the middle. - If is even, there is a single middle term carrying the unique greatest coefficient. (9 terms;

See the full step-by-step solution

Create a free account to read the complete working (2 steps), and practise questions like this in a timed test.

Create a free account

Question ID VK-108330