Visualizing sine (red) on the Y axis and cosine (blue) on the X axis. The relative position of the circle is shown in black:
This shows the same thing, but a bit more simply:
Here’s how sine and cosine apply to triangles:
Cosine is the derivative of sine:
Tangent…
Perche’ alle superiori non ce la spiegano cosi’ la trigonometria ?
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