Evaluate: tan⁻¹(1/2) + tan⁻¹(1/3) equals:
Evaluate: tan⁻¹(1/2) + tan⁻¹(1/3) equals:
- A. π/4
- B. π/2
- C. π/3
- D. π/6
Answer: A) π/4
Explanation: tan⁻¹(1/2) + tan⁻¹(1/3) = tan⁻¹((1/2+1/3)/(1−1/2×1/3)) = tan⁻¹((5/6)/(5/6)) = tan⁻¹(1) = π/4.
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