Question
Question: The combined equation of bisectors of angles between coordinate axes, is...
The combined equation of bisectors of angles between coordinate axes, is
A
x2+y2=0
B
x2−y2=0
C
xy=0
D
x+y=0
Answer
x2−y2=0
Explanation
Solution
Equations of axes are x=0,6muy=0. Combined equation is xy=0. Therefore, combined equation of bisectors is 0x2−y2=1/2xy⇒x2−y2=0.