Find the equation of the ellipse in the following case: eccentricity `e=1/2` and semi major axis `=4`.

Find the equation of the ellipse in the following case: eccentricity e=(1)/(2) and major axis =12

Find the equation of the ellipse in the following case: eccentricity e=1/2 and major axis =12

Find the equation of the ellipse in the following case: eccentricity e=2/3 and length of latus rectum =5 .

Find the equation of the ellipse in the following case: eccentricity e=(2)/(3) and length of latus rectum =5 .

Find the equation of the ellipse in each of the following cases: centre at (5,4) and the major axis is of length 16 and the minor axis is of length 10.

Find the equation of the ellipse in each of the following cases: centre at (0,0) one end of major axis is (-5,0) and eccentricity 3/5.

Find the equation of the ellipse in the following case: ends of major axis (+-3,0) ends of minor axis (0,+-2)

Find the equation of the ellipse in the following case: ends of major axis (+-3,0) ends of minor axis (0,+-2)

Find the equation of the ellipse whose major axis is 8 and eccentricity (1)/(2) .

Find the equation of the ellipse in each of the following cases: foci at (+-5,0) and length of major axis is 12.