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प्रश्न
The combined equation of the lines through origin and perpendicular to the pair of lines 3x2 + 4xy − 5y2 = 0 is ______
विकल्प
5x2 + 4xy − 3y2 = 0
3x2 + 4xy − 5y2 = 0
3x2 - 4xy + 5y2 = 0
5x2 + 4xy + 3y2 = 0
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उत्तर
5x2 + 4xy − 3y2 = 0
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