Find the area of region bounded by the ellipse `x^2/4 + y^2/9 = 1`

Using integration find the area of region bounded by the ellipse x^2/16 + y^2/9 = 1

Using integration find the area of region bounded by the ellipse x^2/25 + y^2/16 = 1

Using integration find the area of region bounded by the ellipse x^2/16 + y^2/25 = 1

Find the area of smaller region bounded by the ellipse x^2/9 + y^2/4 = 1 and straight line x/3 + y/2 = 1 .

Find the area of the region bounded by the ellipse (x^(2))/4+(y^(2))/9 = 1

Find the area of the region bounded by the ellipse : 4x^2+25y^2=1 .