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The equation $a x^{2} + 2 h x y + b y^{2} = 0$ represents a pair of perpendicular lines if

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a = 3, b = 4

a = 4, b = – 3

h = – 1

a = 11, b = – 11

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Correct option is D

Lines are perpendicular if a + b = 0

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The equation ax2+2hxy+by2=0 represents a pair of perpendicular lines if

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The equation $a x^{2} + 2 h x y + b y^{2} = 0$ represents a pair of perpendicular lines if