Trigonometry Examples

300 °

$300 °$

Step 1

Take the cosine of

300 °

$300 °$ .

cos (300 °)

$\cos (300 °)$

Step 2

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

cos (60)

$\cos (60)$

Step 3

The exact value of

cos (60)

$\cos (60)$ is

\frac{1}{2}

$\frac{1}{2}$ .

\frac{1}{2}

$\frac{1}{2}$