Trigonometry Examples

\cot (150 °)

$\cot (150 °)$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cotangent is negative in the second quadrant.

- \cot (30)

$- \cot (30)$

Step 2

The exact value of

\cot (30)

$\cot (30)$ is

\sqrt{3}

$\sqrt{3}$ .

- \sqrt{3}

$- \sqrt{3}$

Step 3

The result can be shown in multiple forms.

Exact Form:

- \sqrt{3}

$- \sqrt{3}$

Decimal Form:

- 1.73205080 \dots

$- 1.73205080 \dots$