Question

What is Parametric form of the equation of a circle?

Answer

Parametric form of the equation of a circle is that it r is the radius of the circle and P (x, Y) is a point on the circle such that OP makes an angle α with the x-axis then.
$\left.\begin{array}{ccc}x& =& r\mathrm{ cos}\alpha \\ y& =& r\mathrm{ sin}\alpha \end{array}\right]0\le \alpha \le 2\pi$
are the parametric form of the circle.

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