Sine Function

The sine function relates to angles in a circle, specifically the unit circle (a circle with radius 1). If you imagine a point moving around the circle, the sine of an angle measures the vertical height of that point relative to the circle’s center. As the angle increases from 0 to 360 degrees, the sine value oscillates smoothly between -1 and 1, creating a wave pattern. This function models periodic phenomena like sound waves, light, and seasonal patterns, reflecting how certain quantities repeat in a regular, wave-like manner over time or space.