JEE Mains Model Paper 11

© examsiri.com

Question : 85 of 90

Marks: +1, -0

The sum of the first n terms of the series

1

2

+

3

4

+

7

8

+

15

16

+ .... is equal to

2n - n + 1
1 - 2−n
n + 2−n - 1
2n - 1

Go to Question:

Prev Question

Next Question