Given the following unit circle, rotate green dot to the appropriate angle and then find the exact value of the function.
sine, 90, degrees
sin90
∘
To find the exact value of sine 90 degrees, we first need to determine the angle on the unit circle that corresponds to 90 degrees. In this case, the angle is located at the point (0, 1), which is the positive y-coordinate on the unit circle.
Since the y-coordinate represents the value of sine of the angle, we can conclude that sine 90 degrees is equal to 1.
Therefore, sin90° = 1.