1.

We take on the ellipse (x^(2))/(a^(2)) + (y^(2))/(b^(2))=1 (a gt b) a point M(x,y) lying in the first quadrant. Show that the sector of the ellipse bonded by its semi-major axis and the focal radius drawn to the point M has an area. S= (ab)/(2) "arc " "cos "(x)/(a). With the aid of this result deduce a formula for computing the area of the entire ellipse.

Answer»


ANSWER :`(AB)/(4)PI`


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