Mathematics · 2021
JEE Main · 24 February 2021, Shift 2 · Q89
The sum of first four terms of a geometric progression (G.P.) is 65/12 and the sum of their respective reciprocals is 65/18. If the product of first…
The sum of first four terms of a geometric progression (G.P.) is $\displaystyle \frac{65}{12}$ and the sum of their respective reciprocals is $\displaystyle \frac{65}{18}$. If the product of first three terms of the G.P. is $\displaystyle 1$ , and the third term is $\displaystyle \alpha$, then $\displaystyle 2 \alpha$ is \_\_\_\_.
Official answer
3
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.