Show that the line `5x + 12y - 4 = 0 `
touches the circle
`x^(2)+ y^(2) -6x + 4y + 12 = 0`

The piont where the line 4x - 3y + 7 = 0 touches the circle x^(2) + y^(2) - 6x + 4y - 12 = 0 is

The piont where the line 4x - 3y + 7 = 0 touches the circle x^(2) + y^(2) - 6x + 4y - 12 = 0 is

Center of the circle x^(2) + y^(2) - 6x + 4y - 12 = 0 is -

Show that the line 12 y - 20 x -9=0 touches the parabola y ^(2) = 5x.

Show that the line x + 2y - 4 = 0 touches the ellipse 3x^(2) + 4y^(2) = 12 also find the point of contact.

Show that the line x + 2y - 4 = 0 touches the ellipse 3x^(2) + 4y^(2) = 12 also find the point of contact.

Show that the line 3x-4y=1 touches the circle x^(2)+y^(2)-2x+4y+1=0 .

Show that the line 7x-3y-1=0 touches the circle x^2+y^2+5x-7y+4=0 at point (1,2)

The line 4y - 3x + lambda =0 touches the circle x^2 + y^2 - 4x - 8y - 5 = 0 then lambda=