Okay, having trouble with this problem.
Show that the equation of the line tangent to the circle x^2 + y^2 = a^2 at the point (X1 , Y1) (thats x sub 1 y sub 1) on the circle is X1(x) + Y1(y) = a^2
Where do I even start?
Show that the equation of the line tangent to the circle x^2 + y^2 = a^2 at the point (X1 , Y1) (thats x sub 1 y sub 1) on the circle is X1(x) + Y1(y) = a^2
Where do I even start?