
Sine
Trigonometry Base
Understand that 'sine' is fundamental in trigonometry, a branch of mathematics dealing with angles and sides of triangles.

The sine of 90 degrees is always 1.
Ratio Concept
'Sine' in mathematics expresses a ratio, not just any number, which helps to understand various geometrical relationships.

We need the sine of this angle to find the ratio of side lengths.
Not Just Triangles
Besides right triangles, 'sine' extends to functions graphed as waves, used in physics, engineering, and signal processing.

The graph of the sine function resembles ocean waves.
Compare with
CosineCurveTangentWave
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