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18. Three vectors A, B and C are such that A = B+Cand their magnitudes are in ratio 10 : 8 6respectively, then angle between A and B is(1) 53^° (2) 370(3) 90^° (4) 45^°

Answer» 18. Three vectors A, B and C are such that A = B+Cand their magnitudes are in ratio 10 : 8 6respectively, then angle between A and B is(1) 53^° (2) 370(3) 90^° (4) 45^°


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