Simplify tan(x)*tan(x)

$\tan (x) \cdot \tan (x)$

Raise $\tan (x)$ to the power of $1$ .

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

Raise $\tan (x)$ to the power of $1$ .

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

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Add $1$ and $1$ .

$\tan^{2} (x)$