BodhiAI1

Nov. 15, 2019
Condition of Tangency

**Let the line y = mx + c is tangent to the circle x ^{2} + y^{2} = a^{2} then**

which is a quadratic in x, then according to Condition of Tangency, we must have

which is the condition for which the line y = mx+c is tangent to the circle x^{2} + y^{2} = a^{2}