Class 11MathematicsPair of straight linesAngle between the pair of straight lines, Condition for parallel and perpendicular lines
MediumThe angle between the lines $xy = 0$ is ............. $^\circ$.
- A$45$
- B$60$
- C$90$
- D$180$
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The angle between the lines represented by the equation $\lambda x^2 + (1 - \lambda)^2 xy - \lambda y^2 = 0$ is .....$^o$.
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