Unit Circle Definition:
A circle centered at the origin (0, 0)
It has radius of 1 unit.Unit circle equation:
x2 + y2 = 1
Circle Equation:
Center at (a, b) and radius length r(x - a)2 + (y - b)2 = r2
What Is a Unit Circle
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(x - a)2 + (y - b)2 = r2
