# A calculus problem by megh choksi

Calculus Level 3

Let ${a_{n}}$ be an A.P with common difference d , ${b_{n}}$ be a G.P with common ratio q , where q is appositive rational number . If $b_{1} = d$ $b_{1} = d^{2}$ and $\frac{\sum (a_{1})^{2}}{\sum b_{1}}$ is a positive integer ,then $q = \frac{x}{y}$

x + y=

This question is flagged because it is unclear what $$\frac{\sum (a_{1})^{2}}{\sum b_{1}}$$ means. Supposedly, it should be indexed, as opposed to the sum of constants.

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