# Q.  form a  triangle, then find out the internal angle of the triangle between ?

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It 2pi/3 because in an isosceles triangle angle between two equal side is 120 . In this case as A and B sides are equal so it is 2pi/3 above of all if you add A vector n B vector you will get 2root3kcap .
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Okay.. i got it.. I just realised i was doing one silly mistake of minus.. Thanks for helping..☻☺☻
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What are you looking for?