JEE Main 2021 Mathematics question
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 a, then 2 is.
Answer: 3
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 a, then 2 is.