Sine, cosine and tangent
The three most important functions in trigonometry are the sine, cosine and tangent. Each One is the length of one side divided by the length of another ... Just must learn which sides are!
For angle θ :
For angle θ :
| sine: | sin (θ ) = Opposite / Hypotenuse |
| cosine function: cos | ( θ) = Adjacent / Hypotenuse |
| tangent function: | tan( θ ) = Opuesto / Adyacente |
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