Mathematics · Integration
Find the indefinite integral: ∫ 2xx2 + 1 dx
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-1 / (x2 + 1)2 + C
- 2tan-1(x) + C
- 3log(x2 + 1) + C✓
- 4log(tan-1x) + C
Correct answer
log(x2 + 1) + C
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