Challenging Questions

Mathematics – Compulsory Part

Learning Unit: Equations of circles

Question M0-13-03

Let \(C\) be the circle \((x – h)^2 + (y – k)^2 = r^2\) and \(L\) be the tangents to \(C\) with slope \(m\). Find the equations of \(L\) in terms of \(h, k, r\) and \(m\).

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