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Question
Choose correct alternatives:
The joint equation of the lines through the origin and perpendicular to the pair of lines 3x2 + 4xy – 5y2 = 0 is _______.
Options
5x2 + 4xy – 3y2 = 0
3x2 + 4xy – 5y2 = 0
3x2 – 4xy + 5y2 = 0
5x2 + 4xy + 3y2 = 0
Solution
The joint equation of the lines through the origin and perpendicular to the pair of lines 3x2 + 4xy – 5y2 = 0 is `bb(underline(5x^2 + 4xy - 3y^2 = 0)`.
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