what is sin of pi

The value of sin(pi) is 0. In trigonometry, we use pi (π) for 180 degrees to represent the angle in radians. Hence, sin π is equal to sin 180 or sin π = 0. The sine function gives the y value of a point on the unit circle based on the angle. If you rotate π radians from the positive x-axis, you will end up on the negative x-axis, where the y-coordinate is 0. Therefore, the value of sin(pi) is 0.