A) Not coplanar
B) coplanar but cannot form a triangle
C) coplanar and form triangle
D) coplanar and can form a right-angled triangle
Correct Answer: C
Solution :
[c] \[\left[ \begin{align} & \vec{a}=\hat{i}+2\hat{j}+3\hat{k} \\ & \vec{b}=2\hat{i}-\hat{j}+\hat{k} \\ & \vec{c}=3\hat{i}+\hat{j}+4\hat{k} \\ \end{align} \right.\Rightarrow \vec{c}=\vec{a}+\vec{b}\]You need to login to perform this action.
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