please see the attachment
We know that from the standard equation of the circle,one can find centre and radius of the circle
center (-g,-f) and radius
So,in the given equation
We also know that slope of parallel lines are equal and tangent touches the circle and make 90° angle with radius of the circle.
Hence equation of tangent would be
and perpendicular distance from center will equal to the radius of circle,so
apply the distance formula between a line and a point
Hence equation of tangent is
Hope it helps you.
please complete the question.
what's your questions... sorry I can't able to understand it
Let the dielectric constant of material used be K.