Difference between revisions of "Sine"

Revision as of 14:21, September 18, 2008

Sine is a trigonometric function describing the ratio between the opposite side and the hypotenuse in a right triangle.

A mathematical identity involving sine is:

$\sin \theta =\cos \left({\frac {\pi }{2}}-\theta \right)={\frac {1}{\csc \theta }}\,$

The basic sine graph is as follow:

That would be a full period of the graph - as 2π radians is equivalent to one circle. The graph continues in that pattern.

@@ Line 1: / Line 1: @@
-'''Sine''' is a [[trigonometry|trigonometric]] function.
+'''Sine''' is a [[trigonometry|trigonometric]] function describing the ratio between the opposite side and the hypotenuse in a right triangle.
+A mathematical identity involving sine is:
 <math>\sin \theta = \cos \left(\frac{\pi}{2} - \theta \right) = \frac{1}{\csc \theta}\,</math>