Question

vector p + vector q+ vector R = 0, and |vector p |=3
|vector q| = 4 ; |vector R|= 5, angle between vector p & vector R is

{tan^-1 ¾ =37°} , which option is correct ---------

(1) 127° (2) 37°

(3) 153° (4) 53°
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Answer 1

Answer:

answer is in image hope it helps