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MHT CET 2023 Mathematics question

MathematicsStraight LinesMHT CET 2023

If the slope of one of the lines represented by is reciprocal of the slope of the other, then the sum of squares of slopes is

Answer: (A)

Solution

Put in the pair of lines: , whose roots are the two slopes. Product of roots . The slopes are reciprocal, so , giving . Sum of roots .

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Question ID VK-094605