AP and TS EAMCET Engineering Model Paper 12

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Question : 13 of 160
 
Marks: +1, -0
Any two of let a,b and c be non-collinear vectors such that (a×b)×c=
1
3
|b
|
|c
|a
.If θ is the angle between the vectors b‌&‌c , then sinθ =
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