alleryStart learning →A homogeneous equation ax² + 2hxy + by² = 0 represents a pair of real lines through the origin when
Ah² - ab ≥ 0
Bh² - ab < 0
Ca + b = 0 only
Dh² + ab = 0
Answer & Solution
Correct answer: A. h² - ab ≥ 0
Real lines through the origin exist only when the discriminant h² - ab is non-negative.
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