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प्रश्न
. Show that the lines represented by 3x2 - 4xy - 3y2 = 0 are perpendicular to each other.
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उत्तर
Comparing the equation 3x2 - 4xy - 3y2 = 0 with ax2 + 2hxy + by2 = 0, we get, a = 3, 2h = -4, b = -3.
Since a + b = 3 + (- 3) = 0, the lines represented by 3x2 - 4xy - 3y2 = 0 are perpendicular to each other.
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