Trigonometry Examples

$\tan^{2} (- x)$

Step 1

Since $\tan (- x)$ is an odd function, rewrite $\tan (- x)$ as $- \tan (x)$ .

${(- \tan (x))}^{2}$

Step 2

Apply the product rule to $- \tan (x)$ .

${(- 1)}^{2} \tan^{2} (x)$

Step 3

Raise $- 1$ to the power of $2$ .

$1 \tan^{2} (x)$

Step 4

Multiply $\tan^{2} (x)$ by $1$ .

$\tan^{2} (x)$