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AP and TS EAMCET Engineering Model Paper 15

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Question : 20 of 160
 
Marks: +1, -0
If a,b,c are three non - coplanar vectors represented by concurrent edges of a parallelopiped of volume 4 cu. units then (a+b).(b×c) +(b+c).(c×a) +(c+a).(a×b)=
Validate
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