Jee Main
Sequences And Series
JEE Main 2022 (Online) 27th June Evening Shift
MCQ+4 / -12022
Let \(S = 2 + {6 \over 7} + {{12} \over {{7^2}}} + {{20} \over {{7^3}}} + {{30} \over {{7^4}}} + \,.....\). Then 4S is equal to
Jee Main
JEE Main 2022 (Online) 27th June Evening Shift
Let \(S = 2 + {6 \over 7} + {{12} \over {{7^2}}} + {{20} \over {{7^3}}} + {{30} \over {{7^4}}} + \,.....\). Then 4S is equal to