Evaluate sin(2pi)

Problem

sin(2*π)

Solution

1. Identify the angle on the unit circle. The angle 2*π radians represents one full revolution around the circle, which is coterminal with 0 radians.

2. Determine the coordinates of the point on the unit circle at 2*π The point is (1,0)

3. Apply the definition of the sine function. For any point (x,y) on the unit circle, sin(θ)=y

4. Substitute the y-coordinate from the point (1,0) to find the value.

Final Answer

sin(2*π)=0

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