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 ...
已浏览 54.9万 次2017年12月28日
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