Answer: The tangent line to a circle may be defined as the
Chapter 1, Problem 52(choose chapter or problem)
The tangent line to a circle may be defined as the line that intersects the circle in a single point, called the point of tangency. See the figure. If the equation of the circle is x2 + y2 = r2 and the equation of the tangent line is y = mx + b, show that: (a) r2 11 + m2 2 = b2 [Hint: The quadratic equation x2 + 1mx + b22 = r2 has exactly one solution.] (b) The point of tangency is -r2 m b , r2 b . (c) The tangent line is perpendicular to the line containing the center of the circle and the point of tangency
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer