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53.Let a.bb,c be three unit vectors such that a(bc)=3/2(b+cc).If vector b is not parallel to vector c,then the angle between a and b is: |
| Answer» 53.Let a.bb,c be three unit vectors such that a(bc)=3/2(b+cc).If vector b is not parallel to vector c,then the angle between a and b is: | |