Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent
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YouTubeProfessor Dave Explains
Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent
Oh man, what is all this sine and cosine business? What do these things even mean?! And Greek letters now? I don't know Greek! OK friend, just relax. Understanding the trig functions is as easy as pi radians. We just make some triangles and set up a few definitions. I promise it's no sweat, just watch this! Watch the whole Mathematics playlist ...
548.5K viewsDec 28, 2017
Tangent Definition
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Deriving the double angle formula for tangent in 30 seconds
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Number of Tangents from a Point to a Circle
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Number of Tangents from a Point to a Circle
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What is a Tangent to a Circle?
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What is a Tangent to a Circle?
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Tangent Applications
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