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If the angle between the lines represent...

If the angle between the lines represented by `ax^(2) + 2hxy + by^(2) = 0` is equal to the angle between the lines `2x^(2) - 5xy + 3y^(2) = 0`, then show that `100(h^(2)-ab) = (a+b)^(2)`.

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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- OCTOBER 2014-SECTION - II
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