Vectors , and are so placed that the end point of one vector is the starting point of…

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Vectors a=i^+2j^+3k^\mathbf{a} = \hat{i} + 2\hat{j} + 3\hat{k} , b=2i^−j^+k^\mathbf{b} = 2\hat{i} - \hat{j} + \hat{k} and c=3i^+j^+4k^\mathbf{c} = 3\hat{i} + \hat{j} + 4\hat{k} are so placed that the end point of one vector is the starting point of the next vector. Then the vectors are (1) not coplanar (2) coplanar but cannot form a triangle (3) coplanar and form a triangle (4) coplanar and can form a right angled triangle

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