Simplify cos(x)*1+tan(x)^2

$\cos (x) \cdot 1 + \tan^{2} (x)$

Simplify each term.

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Multiply $\cos (x)$ by $1$ .

$\cos (x) + \tan^{2} (x)$

Rewrite $\tan (x)$ in terms of sines and cosines.

$\cos (x) + {(\frac{\sin (x)}{\cos (x)})}^{2}$

Apply the product rule to $\frac{\sin (x)}{\cos (x)}$ .

$\cos (x) + \frac{\sin^{2} (x)}{\cos^{2} (x)}$

Convert from $\frac{\sin^{2} (x)}{\cos^{2} (x)}$ to $\tan^{2} (x)$ .

$\cos (x) + \tan^{2} (x)$

Simplify cos(x)*1+tan(x)^2

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