Find the equation of ellipse having focus at (1,2) corresponding directirx `x-y=2=0` and eccentricity `0.5`.

Find the equation of the ellipse whose focus is (1,-2) , the corresponding directrix x-y+1=0 and eccentricity (2)/(3) .

Find the equation of the ellipse whose focus is (1,-1), the corresponding directrix is x-y-3=0, and eccentricity is 1/2 .

Find the equation of the ellipse whose focus is S(-1,1), the corresponding directrix is x-y+3=0, and eccentricity is 1/2. Also find its center,the second focus,the equation of the second directrix,and the length of latus rectum.

Find the equation of the ellipse whose focus is S(-1, 1), the corresponding directrix is x -y+3=0, and eccentricity is 1/2. Also find its center, the second focus, the equation of the second directrix, and the length of latus rectum.

Find the equation of the ellipse with focus at (1,-1) e= 2/3 and directrix as x+y+2=0 .

Find the equation of the ellipse whose focus is S(+-1, -1), the corresponding directrix is x -y+3=0, and eccentricity is 1/2. Also find its center, the second focus, the equation of the second directrix, and the length of latus rectum.

Find the equation of the ellipse whose focus is (5,6), equation of directrix x+y+2=0 and eccentricity is (1)/(2) .

Find the equation of the ellipse whose focus is (1,-2) the directrix 3x-2y+5=0\ a n d\ eccentricity equal to 1/2.

Find the equation of the ellipse whose focus (-1,1) e=1/2 and directrix is x-y+3=0