Mathematics · Integration
If ∫ √21 + sin x dx = 2 log|A(x) - B(x)| + C and 0 ≤ x ≤ π2, then B(π4) =
- 11√(2 + 3√3)
- 21√(3 + 2√2)✓
- 3-1√(3 + 2√2)
- 42√(2 + √2)
Correct answer
1√(3 + 2√2)
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