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Class 12 Vector Algebra · Mcq Single Correct1 Marksdot_product_angle

Class 12 Maths · Vector Algebra · Mcq Single Correct #84

For nonzero a,b, a·b=|a||b|/2. Find their angle.

✅ Step-by-Step Solution

Final Answer: Option (C): 60°
  1. cos θ=1/2, so θ=60°.

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