Question

How do you use a calculator to evaluate `tan3`?

Answer 1

See below

Explanation:

At time your question sounds confuaing and not much from trignometry rather technology.

I'm more familiar with degrees than radians. So first going on with degrees.
`tan 3°=0.0524077793`
All you need to do is too just tap on 'tan' and then input angle in degrees or radians ,whatever your calculator supports.
If you type this or commamd this to google assistant then it google calcultor generally accepts it in radians form (in case you haven't altered settings) you could choose between the 3 units of angle available there.

Hope this helps!