AP EAMCET2002MathematicsPair of Lines
If the co-ordinate axes are the bisectors of the angles between the pair of lines a x^2+2 h x y+b y^2=0 where h^2>a b and a b , then
Options
- Aa+b=0
- Bh=0
- Ch 0, a+b=0
- Da+b 0
Correct answer
B. h=0
Step-by-step solution
Equation of pair of bisectors of aligned & a x^2+2 h x y+b y^2=0 is x^2-y^2 a-b = x y h & if h=0, x y=0 & x=0, y=0 aligned Which are the equations of coordinate axes.