Question

If one of the lines of $my^2 + (1 - m^2)xy - mx^2 = 0$ is a bisector of the angle between the lines $xy = 0$, then $m$ is

• A. $-1/2$
• B. $-2$
• C. $1$
• D. $2$

Answer 1

Answer: (C)

$1$

Answer 2

Equation of bisectors of lines $xy = 0$ are $y = ? x$ put $y = ? x$ in $my^2 + (1 - m^2)xy - mx^2 = 0$, we get $(1 - m^2) x^2 = 0$ $? m = ? 1.$