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[" (7.) Prove that the equation of the p...

[" (7.) Prove that the equation of the parabola whose focus is "8,20],[" tangent at the verlex is "x-y+1=0" is "],[x^(2)+y^(2)+2xy-4x+4y-4=0]

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Prove that the equation of the parabola whose focus is (0, 0) and tangent at the vertex is x-y+1 = 0 is x^2 + y^2 + 2xy - 4x + 4y - 4=0 .

Prove that the equation of the parabola whose focus is (0, 0) and tangent at the vertex is x-y+1 = 0 is x^2 + y^2 + 2xy - 4x + 4y - 4=0 .

Prove that the equation of the parabola whose focus is (0, 0) and tangent at the vertex is x-y+1 = 0 is x^2 + y^2 + 2xy - 4x + 4y - 4=0 .

Prove that the equation of the parabola whose focus is (0, 0) and tangent at the vertex is x-y+1 = 0 is x^2 + y^2 + 2xy - 4x + 4y - 4=0 .

Prove that the equation of the parabola whose focus is (0, 0) and tangent at the vertex is x-y+1 = 0 is x^2 + y^2 + 2xy - 4x + 4y - 4=0 .

The equation of the parabola whose focus is (1,-1) and the directrix is x+y+7=0 is x^(2)+y^(2)-2xy-18x-10y=0x^(2)+y^(2)-18x-10y-45=0x^(2)-18x-10y-45=0x^(2)+y^(2)-2xy-18x-10y-4=0

Prove that the line 4x-2y-1=0 touches the parabola whose focus it at (0,0) and directrix is the line y=2x-1.

Equation of the parabola with focus (3.4) and directrix x+y+7=0 is

The equation of parabola whose latus rectum is 2 units, axis of line is x+y-2=0 and tangent at the vertex is x-y+4=0 is given by