Sine, Cosine, Tangent, Cotangent, Secant, and Cosecant are
trigonometric ratios. For these trigonometric ratios, the standard angles are
0, \ 30, \ 45, \ 60, and
90 degrees. These angles can also be shown using
radians, such as
0, \ \frac{π}{6}, \ \frac{π}{4}, \ \frac{π}{3}, and
\frac{π}{2} . In trigonometry, these angles are most regularly and frequently used. To solve many problems, you need to know the values of these trigonometry angles.
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