CBSE Class 12 Mathematics 2026 Main Paper 65/5/2 · Q11 Markstranspose
CBSE Class 12 Mathematics 2026 Main Paper 65/5/2 · Question 1 (Matrices)
For A=[[sin θ,cos θ],[−cos θ,sin θ]], which listed θ satisfies A+Aᵀ=I?
✅ Step-by-Step Solution
Final Answer: π/6
- The sum equals 2 sin θ times I. Hence sin θ=1/2, which holds for the listed value π/6. Other angles such as 5π/6 also solve the equation.
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