Consider the ellipse x2a2+y2b2=1,where a>b. As a function of a and b, find the radius of the smallest circle that contains the ellipse, is centered on the y-axis, and which intersects the ellipse only at (0,b).
I didn't even put it in, because I didn't show the form of the answer, it has to be a fraction, may this be a an attention, when a guest gives an explanation that is reasonable you may use the answer, like these,
the standard form
Usinf the: [Theory], this is the [Answer]
i have reposted this 3 times and the guests have used the same format and got three incorrect answers