" the ellipse "(x^(2))/(a^(2))+(y^(2))/(b^(2))=1

Sum of focal distances of an ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 is :

The locus of foot of perpendicular from focus of ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 to its tangents is

Ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1(a>b) Equation of the circle described on major axis as diameter is

Find the area of the greatest rectangle that can be inscribed in an ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 .

Area of ellipse x^2/a^2 + y^2/b^2 = 1, a > b is :