Trigonometry Examples

$\sin^{2} (2 π)$

Step 1

Subtract full rotations of $2 π$ until the angle is greater than or equal to $0$ and less than $2 π$ .

$\sin^{2} (0)$

Step 2

The exact value of $\sin (0)$ is $0$ .

$0^{2}$

Step 3

Raising $0$ to any positive power yields $0$ .

$0$