The tangent at on the ellipse meets the tangent at the positive end of the major axis at Q and the positive end of the minor axis at R. Find

a) the ratio of the lengths PQ and PR

b) the parametric equations of the midpoint of QR.

The equation of the tangent at the point P is

plugging the values i got

then i found the point where it met the axes

and

The i found PQ and PR

and

then the ratio would be

but the answer is

Thanks for any help!