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unit circle

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unit circle

Postby Math Tutor » Sun Dec 04, 2005 1:13 pm

What is unit circle?
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Postby Fed_BG » Sun Jul 15, 2007 4:49 pm

A unit circle is a circle with a unit radius. In example, it may be a circle whose radius is 1. A unit circle is frequently used in trigonometry.

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