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UPSC NDA I 2011 Mathematics Paper
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© examsnet.com
Question : 115
Total: 120
What is
lim
x
→
∞
(
√
a
2
x
2
+
a
x
+
1
−
√
a
2
x
2
+
1
)
equal to?
1
2
1
2
0
Validate
Solution:
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