Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Find the nth term and the sum to n terms of the sequence-
A
1 + 5 + 13 + 29 + 61 + .......
B
6 + 13 + 22 + 33 + .......
C
The sum of infinite terms of the progression 1+ 3x + 5x2 + 7x3 + ......(x<1) is-
D
Sum the series to n terms and to ∞ . 
+ .......
+ .......
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Sol. 2n+1 – 3 ; 2n+2 – 4 – 3n
n2 + 4n + 1; n (n + 1) (2n + 13) + n
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