A) \[{{0}^{o}}\]and \[{{90}^{o}}\]
B) \[{{0}^{o}}\]and \[{{30}^{o}}\]
C) \[{{30}^{o}}\]and \[{{60}^{o}}\]
D) \[{{30}^{o}}\]and \[{{90}^{o}}\]
Correct Answer: A
Solution :
Here the lines are \[x=-1\]and \[y=0\] represented by \[xy+y=0\]. Obviously line \[y=0\]makes an angle of 90° with y-axis and x = ?1 make an angle of 0° with y-axis.
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