A) \[90{}^\circ \]
B) \[60{}^\circ \]
C) \[45{}^\circ \]
D) \[30{}^\circ \]
E) \[180{}^\circ \]
Correct Answer: A
Solution :
The given lines are \[2x-y+3=0\] and \[x+2y+3=0\] \[\therefore \] \[{{a}_{1}}{{a}_{2}}+{{b}_{1}}+{{b}_{2}}=(2)(1)+(-1)(2)=0\] \[\therefore \]angle between the given lines is \[90{}^\circ \].You need to login to perform this action.
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