1.

The joint equation of the lines through the origin and perpendicular to the pair of lines 3x2 + 4xy – 5y2 = 0 is _________.(A) 5x2 + 4xy – 3y2 = 0 (B) 3x2 + 4xy – 5y2 = 0 (C) 3x2 – 4xy + 5y2 = 0 (D) 5x2 + 4xy + 3y2 = 0

Answer»

Correct option is: (A) 5x2 + 4xy – 3y2 = 0



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