A tangent to the ellipse x2 +y2=4 meets the ellipse x2+2y2=6 at P &Q.The angle b/w the tangents at P & Q of ellipse x2+2y2=6 is......
A tangent to the ellipse x2 +y2=4 meets the ellipse x2+2y2=6 at P &Q.The angle b/w the tangents at P & Q of ellipse x2+2y2=6 is......