# Beginner: Plot sin 2x or 4cos 2x

Disclaimer: I'm a beginner with Sage.

I'm working with transformations and translations of trig functions, and although I can "plot(sin, (-2,2))" without trouble, how do I plot the following?

```
sin 2x
```

or

```
4cos 2x
```

or

```
3sin (x+5) -3
```

Thanks!