A) 4
B) 3
C) 2
D) 0
Correct Answer: C
Solution :
Condition for collinearity, \[\mathbf{b}=\lambda \mathbf{a}\] \[\Rightarrow (-2\mathbf{i}+m\mathbf{j})=\lambda (\mathbf{i}-\mathbf{j})\] Comparison of coefficient, we get \[\Rightarrow \lambda =-2\] and \[-\lambda =m.\] So, \[m=2\].You need to login to perform this action.
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