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UPSC NDA I 2012 Mathematics Paper
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© examsnet.com
Question : 15
Total: 120
What does the series
1
+
3
−
1
∕
2
+
3
+
1
∕
3
√
3
+
.
.
.
represent?
AP
GP
HP
None of the above
Validate
Solution:
1
+
1
√
3
+
3
+
1
3
√
3
+
.
.
.
a
2
a
1
=
1
√
3
a
3
a
2
=
3
1
∕
√
3
a
4
a
3
=
1
∕
3
√
3
3
© examsnet.com
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