If ∫₀ᵃ dx/(1 + x²) = π/6, then a equals:
If ∫₀ᵃ dx/(1 + x²) = π/6, then a equals:
- A. √3
- B. 1/√3
- C. 1
- D. √2
Answer: B) 1/√3
Explanation: ∫₀ᵃ dx/(1+x²) = tan⁻¹ a = π/6 → a = tan(π/6) = 1/√3.
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