S3M2: Sine, cosine, and the unit circle

Argomento:Circonferenza, Coseno, Seno, Circonferenza unitaria

Move the red point on the unit circle. What is the connection between the coordinates of the point and the values of the trigonometric functions of the angle? Why?

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Cartesian vs Polar
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Viviani's Curve
Model sferyczny - dwunastościan-dwudziestościan

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Slope Intercept
Lunes of Alhazen
Szögfüggvények - nevezetes szögek
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