JEE Mains Model Paper 13

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Question : 52 of 90

Marks: +1, -0

For x > 0, the sum of the series

1

1+x

-

(1−x)

(1+x)2

+

(1−x)2

(1+x)3

- ... ∞ is equal to

1
4
1
2
3
4
1

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