1.

Show that the vectors vec(a)=hat(i)-2hat(j)+3hat(k) vec(b)=-2i+3hat(j)-4hat(k)vec( c) =hat(i) -3 hat(j) +5hat(k) are coplanar.

Answer»

Solution :`[VEC(a),vec(B),vec( c)]=|(1,-2,3),(-2,3,-4),(1,-3,5)|=0 THEREFORE vec(a), vec(b) , vec (c )` are coplanar.


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