If the expansion of (a + b)ⁿ has 13 terms, then n =

1. A 6
2. B 12 Correct answer
3. C 13
4. D 7

Solution

Number of terms in (a+b)ⁿ = n+1 (since r goes from 0 to n). n+1 = 13 → n = 12.

About this question

Subject: Mathematics · Chapter: Binomial Theorem · Topic: Middle Term

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