﻿ If the sum of the coefficients in the expression of (1 + 2x)n is 6561. The greatest term in the expression at x = 1/2 is : Kaysons Education

# If The Sum Of The Coefficients In The Expression Of (1 + 2x)n is 6561. The Greatest Term In The Expression At x = 1/2 Is

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## Question

### Solution

Correct option is

5th

Sum of the coefficients in the expression of (1 + 2x)n = 6561

⇒ (1 + 2x)n = 6561, when x = 1

⇒ 3n = 6561

⇒ 3n = 38 ⇒ n = 8

Hence, 5th term is the greatest term.

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