Limits: (lesson 4 of 5)

## Limits of Trigonometric Functions

### Important limits:

Example

Find the limit:

.

Solution

Direct substitution gives the indeterminate form 0/0. You can still
solve this problem, however: write tan x as (sin x)/(cos x).

## Random Quote

Mathematics is a game played according to certain rules with meaningless marks on paper.

David Hilbert