Answer the following:Show that `x=-1` is a tangent to the circle `x^2+y^2-2y=0` at `(-1,1)`

Answer the following:Show that the line 2x+y+6=0 is a tangent to the circle, x^2+y^2+2x-2y-3=0 .Find its point of contact.

If y+c=0 is a tangent to the circle x^2+y^2-6x-2y+1=0 at (a,4) then

Solve the following:Show that the line 3x-4y+15=0 is a tangent to the circle x^2+y^2=9 ,Find the point of contact.

Answer the following:Find the equation of tangent to the circle x^2+y^2=5 at the point (1,-2) on it.

Answer the following:Find the equations of the tangents to the circle x^2+y^2-2x+8y-23=0 having slope 3.

Find the equation of the tangent to the circle x^2+y^2-4x-6y-12=0 at (-1,-1)

The equation to the tangent to the circle x^2+y^2-x+3y=10 at (-2,1) is

Answer the following:Find the centre and radius of the circle x^2+y^2-x+2y-3=0

Answer the following:Find the equation of tangent to the circle x^2+y^2=64 at the point ((2pi)/3)

Answer the following:Find the equations of the tangents to the circle x^2+y^2=4 which are parallel to the line 3x+2y-1=0