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YouTube
Math and Science
Trigonometric Functions: Sine & Cosine of Acute Angles
Understanding sine and cosine of acute angles can be like discovering the secrets behind the magic of triangles! Picture a right triangle, which has one angle that's 90 degrees. The other two angles are acute, meaning they are less than 90 degrees. The sine (sin) and cosine (cos) functions are all about these acute angles and how they relate to ...
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