Mathematics - Binomial Theorem Question with Solution | TestHub

MathematicsBinomial TheoremSpecific TermsMedium2 minQB

MathematicsMediumsingle choice

The coefficients of $9^{th}, 1 0^{th}$ and $1 1^{th}$ terms in the expansion of $(1 + x)^{n}$ are in A.P. then the Value of n is

Answer:

Solution:

$r = 9, n^{2} - (4 \times 9 + 1) n + 4 \times 9^{2} - 2 = 0, n = 14$ or 23.

Stream:JEESubject:MathematicsTopic:Binomial TheoremSubtopic:Specific Terms

⏱ 2mℹ️ Source: QB

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