Class 12 Vector Algebra · Conceptual Answer1 Markscross_product_angle
Class 12 Maths · Vector Algebra · Conceptual Answer #92
Given |a|=1, |b|=2 and |a×b|=√3, find all possible angles.
✅ Step-by-Step Solution
Final Answer: π/3 or 2π/3
- The cross-product formula gives sin θ=√3/2. Both θ=π/3 and θ=2π/3 lie in [0,π].
- π/3 or 2π/3
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] The cross-product formula gives sin θ=√3/2. Both θ=π/3 and θ=2π/3 lie in [0,π].
- [0.5 marks] π/3 or 2π/3
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