The vertex of the rectangular hyperbola `(x - h) (y - k) = p^2` is

The fouce of the rectangular hyperbola (x-h) (y-k) =p^(2) is

The focus of the rectangular hyperbola (x + 4) (y-4) = 16 is

The focus of the rectangular hyperbola (x+4)(y-4)=16 is

The focus of rectangular hyperbola (x-a)*(y-b)=c^2 is

The focus of rectangular hyperbola (x-a)*(y-b)=c^2 is

The focus of rectangular hyperbola (x-a)*(y-b)=c^(2) is

If the normal to the rectangular hyperbola x^(2) - y^(2) = 4 at a point P meets the coordinates axes in Q and R and O is the centre of the hyperbola , then

If the normal to the rectangular hyperbola x^(2) - y^(2) = 4 at a point P meets the coordinates axes in Q and R and O is the centre of the hyperbola , then

The angle between the rectangular hyperbola (y-mx)(my+x)=a^(2) and (m^(2)-1)(y^(2)x^(2))+4mxy=b^(2)