Question

If |A| =2 and |B|=4 and angle between them is 60°than |A-B|

Answer 1

HERE'S THE ANSWER:-

the detail is given

Answer 2

​ If the angle is 60° and  and  have same length, the triangle formed by , , and , is equilateral. (a=b implies isosceles, and and 60° as vertex imply (180–60)/2 = 60 for the other angles)

Hence |a-b| = 3.

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