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a ,b,c are unit magnitude .a +b+c =0 then find a.b + b.c+2 (c.a) =-2??

a ,b,c are unit magnitude .a +b+c =0 then find a.b + b.c+2 (c.a) =-2??

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
Dear student,

What do we have to find in the question ?

Thanks

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