UPSC NDA 2 2016 Mathematics Solved Paper

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Question : 92 of 120

Marks: +1, -0

What is ∫‌‌

x4−1

x2√x4+x2+1

dx equal to?

[NDA II 2016]

√‌‌
x4+x2+1
x
+c
√x4+2−‌‌
1
x2
+c
√x2+‌‌
1
x2
+1+c
√‌‌
x4−x2+1
x
+c

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