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Rational trigonometry is applied to solve four examples of practical problems, concerning a flagpole, a ladder, a kite and the distance from a point to a line.
Video duration: 316 seconds
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http://www.FreedomUn iversity.TV. A basic introduction to defining the three major trigonmetric functions (sine, cosine, tangent) are discussed using the mneumonic SOH-CAH-TOA. For more applications, examples and other topics please contact Dr J at john@e-litewokrs.com or visit http://www.FreedomUn iversity.TV.
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We derive from first principles the main laws of rational trigonometry, using the concepts of quadrance and spread to replace the usual distance and angle. Most everything works out much simpler.
Video duration: 516 seconds
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We derive some of the most fundamental facts about a circle using rational trigonometry---the Subtended spread theorems and the Equal products theorem.
Video duration: 439 seconds
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This is a quiz on Rational Trigonometry, with seven interesting and challenging questions. You can also try to solve them using classical trigonometry---but remember: only correct answers are allowed.
Video duration: 439 seconds
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A way to remember the Entire Unit Circle for Trigonometry. This is the way that I remember the unit circle.
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