Calculus Examples

$- 2 \sin (π)$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

$- 2 \sin (0)$

Step 2

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

$- 2 \cdot 0$

Step 3

Multiply $- 2$ by $0$ .

$0$