Home › CBSE Class 12 (Commerce) › Mathematics › Inverse Trigonometric Functions › Evaluate tan⁻¹(1) + cos⁻¹(-1/2) + sin⁻¹(-1/2).
Evaluate tan⁻¹(1) + cos⁻¹(-1/2) + sin⁻¹(-1/2).
Aπ/4
Bπ/2
C2π/3
D3π/4
Answer & Solution
Correct answer: D. 3π/4
The sum is π/4 + 2π/3 - π/6 = (3π + 8π - 2π)/12 = 9π/12 = 3π/4.
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