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7.Unit vector a b c are coplanar a unit vector d is perpendicular to them if(ab)(cd)=1/6i-1/3j+1/3k and angle b/W a and b is 30^° them c vector |
| Answer» 7.Unit vector a b c are coplanar a unit vector d is perpendicular to them if(ab)(cd)=1/6i-1/3j+1/3k and angle b/W a and b is 30^° them c vector | |