Class 12 Inverse Trigonometric Functions · Mcq Single Correct1 Marksprincipal_values
Class 12 Maths · Inverse Trigonometric Functions · Mcq Single Correct #76
Evaluate \(\tan^{-1}1+\cos^{-1}(-1/2)+\sin^{-1}(-1/2)\).
✅ Step-by-Step Solution
Final Answer: Option (A): \(3\pi/4\)
- The three principal values are π/4,2π/3,−π/6; their sum is 3π/4.
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