If the equation `ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0` resents a pair of parallel lines then
3,199 views · Published 13 October 2018 · 10:20 · Indexed 25 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If the equation `ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0` resents a pair of parallel lines then prove that
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