Trigonometry Examples

$\sin (\frac{2 π}{3}) = \frac{\sqrt{3}}{2}$

Step 1

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

$\sin (\frac{π}{3}) = \frac{\sqrt{3}}{2}$

Step 2

The exact value of $\sin (\frac{π}{3})$ is $\frac{\sqrt{3}}{2}$ .

$\frac{\sqrt{3}}{2} = \frac{\sqrt{3}}{2}$

Step 3