If Ā= B + C, and the magnitude of A...
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If Ā= B + C, and the magnitude of A, B and are 5, 4 and 3 units respectively, the angle between A and C is (A) cos(3/5) (B) cos'(4/5) (C) 7/2 (D) sin(3/4)

JEE/Engineering Exams
Physics
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