Trigonometry Examples

$\tan (225 °)$

Step 1

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

$\tan (45)$

Step 2

The exact value of $\tan (45)$ is $1$ .

$1$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$