CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/2 · Q31 Marksprincipal_values
CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/2 · Question 3 (Inverse Trigonometric Functions)
Evaluate \(\cos^{-1}(\cos(7\pi/6))\).
✅ Step-by-Step Solution
Final Answer: 5π/6
- The equivalent cosine angle in the principal range [0,π] is 5π/6.
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