Mathematics - Binomial Theorem Question with Solution | TestHub

MathematicsBinomial TheoremSpecific TermsHard2 minQB

MathematicsHardnumerical

The ratio of the second to third term in $(x + y)^{n}$ equals the ratio of the third to fourth term in $(x + y)^{n + 3}$ . Find $n$ .

Answer:

5.00

Solution:

Equating the ratios gives $\frac{2 x}{( n - 1 ) y} = \frac{3 x}{( n + 1 ) y}$ . Thus $2 n + 2 = 3 n - 3$ , so $n = 5$ .

Stream:JEESubject:MathematicsTopic:Binomial TheoremSubtopic:Specific Terms

⏱ 2mℹ️ Source: QB

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