Find the Exact Value tan(-225 degrees )+tan(405 degrees )

$\tan (- 225 °) + \tan (405 °)$

Step 1

Simplify each term.

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

$- \tan (45) + \tan (405 °)$

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

$- 1 \cdot 1 + \tan (405 °)$

Multiply $- 1$ by $1$ .

$- 1 + \tan (405 °)$

Remove full rotations of $360$ ° until the angle is between $0$ ° and $360$ °.

$- 1 + \tan (45)$

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

$- 1 + 1$

Step 2

Add $- 1$ and $1$ .

$0$

Find the Exact Value tan(-225 degrees )+tan(405 degrees )

Related Questions

Support LCMGCF.com by disabling your adblocker.