" The equation of pair of tangent to the ellipse `S=0` from `(x_(1),y_(1))` is

The equation of pair of tangents to the ellipse S=0 from (x_(1),y_(1)) is

If m_(1),m_(2) are the slopes of tangents to the ellipse S=0 drawn from (x_(1),y_(1)) then m_(1)+m_(2)

The equation of pair of tangents drawn from an external point P(x_(1),y_(1)) to circle S=0 is

The equation of the paired tangents from (x_(1),y_(1)) to the circle s=0 is

The equation of pair of tangents drawn from (-3,2) to the ellipse (x^(2))/(3)+(x^(2))/(2)=1 is x^(2)+6xy+3y^(2)-6x+6y-k=0 where k=

Equation of pair of tangents to the ellipse 9x^(2)+25y^(2)=225 from a point (4,2) is

The equation of tangent at (x_(1);y_(1))

Equation of normal to the ellipse at (x_(1);y_(1))

The equation of common tangents to the ellipse x^(2)+2y^(2)=1 and the circle x^(2)+y^(2)=(2)/(3) is