Question:
The two vectors A and B are drawn from a common point and C = A + B. The angle between A and B is:
The two vectors A and B are drawn from a common point and C = A + B. The angle between A and B is:
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Remember the vector addition formula to relate magnitudes and angles.
Updated On: Mar 18, 2026
- 90^ if C² = A² + B²
- greater than 90^ if C² < A² + B²
- greater than 90^ if C² > A² + B²
- less than 90^ if C² > A² + B² Correct options are —
(a) 1, 2 (b) 1, 2, 3, 4 (c) 2, 3, 4 (d) 1, 2, 4
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The Correct Option is D
Solution and Explanation
Using vector identity
C² = A² + B² + 2ABcosθ
the angle depends on the sign of cosθ, determining whether it is acute, obtuse, or right.
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