UPSC 2015 CDS II Math Paper

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Question : 33 of 100

Marks: +1, -0

The sum of first 47 terms of the series

1

4

+

1

5

−

1

6

−

1

4

−

1

5

+

1

6

+

1

4

+

1

5

−

1

6.

...

is

[2015 CDS-II]

0
−
1
6
1
6
9
20

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