Two vectors have magnitudes 3 unit and 4 unit respectively. What should be the angle between them

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asked Mar 28, 2018 in Physics by Golu (37,045 points) 19 145 415
Two vectors have magnitudes 3 unit and 4 unit respectively. What should be the angle between them if the magnitude of the resultant is (a) 1 unit, (b) 5 unit and (c) 7 unit.

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answered Mar 28, 2018 by BISHNU (15,580 points) 4 4 5
selected Mar 29, 2018 by Vikash Kumar
 
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The correct answer is

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