Calculus Examples

$lim_{x \to 0} \cos (x)$

Step 1

Move the limit inside the trig function because cosine is continuous.

$\cos (lim_{x \to 0} x)$

Step 2

Evaluate the limit of $x$ by plugging in $0$ for $x$ .

$\cos (0)$

Step 3

The exact value of $\cos (0)$ is $1$ .

$1$