Tangent 39 = 0.809784033195
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A common tangent is a line which is tangent to two (or more) curves.
Equation of circle: x^2 +10x +y^2 -2y -39 = 0 Completing the squares: (x+5)^2 +(y-1)^2 = 65 Center of circle: (-5, 1) Point of contact: (3, 2) Slope of radius: 1/8 Slope of tangent: -8 Tangent equation: y-2 = -8(x-3) => y = -8x+26
tangent(450) = 0.935809013
196-164/2= 16
Yes a tangent is a straight line thattouches a curve at only one point But there is a tangent ratio used in trigonometry