equation of pair of tangents to a circle from an external point

Here you will learn what is the equation of pair of tangents to a circle from an external point with example. Let’s begin – Equation of Pair of Tangents to a Circle Let the equation of circle S = \(x^2\) + \(y^2\) – \(a^2\) and P(\(x_1,y_1\)) is any point outside the circle. From the point […]