# Category:Sine Function

This category contains results about the sine function.
Definitions specific to this category can be found in Definitions/Sine Function.

In the above right triangle, we are concerned about the angle $\theta$.

The sine of $\angle \theta$ is defined as being $\dfrac {\text{Opposite}} {\text{Hypotenuse}}$.

## Also see

Category:Cosine Function
Category:Tangent Function
Category:Cotangent Function
Category:Secant Function
Category:Cosecant Function