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JEE MATHEMATICS MCQ: LIMITS

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Application +4 | -1
If
α=lim⁡n→∞(12+22+⋯+n2n3)\alpha=\lim \limits_{{n \rightarrow \infty}}\left(\frac{1^2+2^2+\cdots+n^2}{n^3}\right)
and
β=lim⁡n→∞[(13−12)+(23−22)+(33−32)+⋯+(n3−n2)n4]\beta=\lim \limits_{{n \rightarrow \infty}}\left[\frac{\left(1^3-1^2\right)+\left(2^3-2^2\right)+\left(3^3-3^2\right)+\cdots+\left(n^3-n^2\right)}{n^4}\right]
Then
View answer and explanation
Correct option: D
3α=4β3 \alpha=4 \beta
Option D (3α=4β3 \alpha = 4 \beta) is correct because after evaluating the limits, the relationship between α\alpha and β\beta satisfies this equation.

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