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If the line 2x y k 0
If the line 2x y k 0 pictures 5
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If the line 2x y
If the line 2x y k 0
if the line 2x y k 0 is tangent to hyperbola
if the line 2x y k 0 is normal to the parabola
if the line 2x y k 0 is a diameter of the circle
if the line 2x y k 0
