Find the area of that region of the ellipse `4x^(2)+9y^(2)=36` which lies in first quardrant.

In the adjoining, OABO is the region of the ellips 9x^(2)+y^(2)=36 which lies in first quadrant. If OA= 2,OB=6, then find the area of the region bounded by chord AB and arc AB.

The area enclosed within the ellipse 4x^(2)+9y^(2)=36 is

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

Find the area of the portion of an ellipse 4x^2 +9y^2 = 36 , which is surrounding by the positive direction of x and y-axes.

Find the area of the region bounded by the ellipse (x^2)/(16)+(y^2)/9=1 .

Find the area of that region of the parabola y^(2)=4ax which lies between X-axis, x=2a and the latus rectum.

Find the eccentricity of the ellipse, 4x^(2)+9y^(2)-8x-36y+4=0 .

Find the area of the region bounded by the ellipse x^2 / a^2 + y^2 / b^2 = 1

The coordinates of a focus of the ellipse 4x^(2) + 9y^(2) =1 are

Find the centre of the ellipse 25x^(2)+9y^(2)-150x-90y+225=0 .