The sine value of π (pi) is 0. This is because the sine function represents the y-coordinate of a point on the unit circle, and at an angle of π radians (180 degrees), the point is at (-1, 0). Therefore, the y-coordinate is 0, which means the sine of π is 0.
Mathematically, this can be expressed as:
sin(π) = 0
This is a fundamental concept in trigonometry and is often used in various mathematical calculations and applications.