UPSC NDA I 2018 Mathematics Solved Paper

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Question : 90 of 120

Marks: +1, -0

What is ∫

dx

2x−1

equal to ?

[NDA I 2018]

ℓn(2x−1)+c
‌‌
ℓn(1−2−x)
ℓn2
+c
‌‌
ln(2−x−1)
2‌ln‌2
+c
‌‌
ln(1+2−x)
ln‌2
+c

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