Trigonometry Examples

Evaluate sin(2pi)
sin(2π)sin(2π)
Step 1
Subtract full rotations of 2π2π until the angle is greater than or equal to 00 and less than 2π2π.
sin(0)sin(0)
Step 2
The exact value of sin(0)sin(0) is 00.
00
 [x2  12  π  xdx ]  x2  12  π  xdx