A) 1, 0
B) -2, 0
C) -3, 0
D) \[\frac{1}{\sqrt{2}},-\frac{1}{\sqrt{2}}\]
Correct Answer: D
Solution :
\[\hat{A}.\hat{B}=O\,\,\,\,\,\,\,\,\,\,\,\,(\vec{A}\bot \vec{B})\] \[\begin{align} & (a\hat{i}+b\hat{j}).(\hat{i}+\hat{j}) \\ & a+b=0 \\ \end{align}\] \[\therefore \]\[a=\frac{1}{\sqrt{2}'}b=-\frac{1}{\sqrt{2}}\]You need to login to perform this action.
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