The sum of first four terms of a geometric progression (G.P.) is \frac{65}{12} and the sum of their respective reciprocals is \frac{65}{18}. If the product of first three terms of the G.P. is 1 and the third term is \alpha, then 2 \alpha is .......... . [24 Feb 2021 Shift 2]

Sequences and Series Part 2

Section: Mathematics

Question : 98 of 100

Marks: +1, -0

The sum of first four terms of a geometric progression (G.P.) is ‌

and the sum of their respective reciprocals is ‌

. If the product of first three terms of the G.P. is 1 and the third term is α, then 2α is .......... .

[24 Feb 2021 Shift 2]

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