Trigonometry - Introducing the TrigRuler by TrigWorks.

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Uploaded by on Aug 26, 2007

The TrigRuler is a hand held measuring tool used as an aid to introduce trigonometry.This short video demonstrates how to use the TrigRuler to measure the angle along with the Sine and Cosine simultaneously. Anyone taking Trig for the first time or needing a review, or taking Pre Calc, or Analytical Geometry or Calculus will find the TrigRuler to be very helpful by showing you how trig works.

www.TrigWorks.com

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