Question

The standard equation of ellipse is​

Answer 1

Answer:

The standard equation of an ellipse is (x^2/a^2)+(y^2/b^2)=1. If a=b, then we have (x^2/a^2)+(y^2/a^2)=1. Multiply both sides of the equation by a^2 to get x^2+y^2=a^2, which is the standard equation for a circle with a radius of a.