Question:
Given that A + B = R and A = B = R. What should be the angle between A and B?
Given that A + B = R and A = B = R. What should be the angle between A and B?
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For equal vectors, geometry simplifies vector addition greatly.
Updated On: Mar 20, 2026
- 0
- \(\pi/3\)
- \(2\pi/3\)
- π
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The Correct Option is B
Solution and Explanation
Step 1: Using vector formula R² = A² + B² + 2ABcosθ
Step 2: Given A=B=R R² = R² + R² + 2R²cosθ
Step 3: 1 = 2(1+cosθ) ⟹ cosθ=\frac12 ⟹ θ=(π)/(3)
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