A) \[{{45}^{o}}\]
B) \[{{30}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
The angle between the given lines is given by \[\cos \theta =\frac{(2)(1)+(5)(2)+(4)(-3)}{\sqrt{4+25+16}\cdot \sqrt{1+4+9}}\] \[=0\] \[\Rightarrow \] \[\theta ={{90}^{o}}\]You need to login to perform this action.
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