Question:
If $S_n$ stands for sum to n-terms of a G.P. with ‘a’ as the first term and ‘r’ as the common ratio then $S_n : S_{2n}$ is
If $S_n$ stands for sum to n-terms of a G.P. with ‘a’ as the first term and ‘r’ as the common ratio then $S_n : S_{2n}$ is
Updated On: Apr 12, 2025
- $ r^n +1$
- $\frac1{r^n +1}$
- $ r^n -1$
- $\frac1{r^n -1}$
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The Correct Option is B
Solution and Explanation
The correct answer is Option (B) : $\frac1{r^n +1}$
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