Class 11MathematicsPair of straight linesAngle between the pair of straight lines, Condition for parallel and perpendicular lines
MediumWhich of the following equations represents a pair of straight lines perpendicular to each other?
- A$2{x^2} = 2y(2x + y)$
- B${x^2} + {y^2} + 3 = 0$
- C$2{x^2} = y(2x + y)$
- D${x^2} = 2(x - y)$
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