the difference of the tangents of the angles made by the lines 3x2-2xy-y2=0 with x-axis is?

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Please find below the solution to the asked query:

For ax2+2hxy+by2=0, if θ is angle between lines, thentanθ=2h2-aba+bHence for 3x2-2xy-y2=0tanθ=2-12-3×-13-1=21+32=2 Answer

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