Need some help with trigonometry related questions

[AdventWolf]

Ah my bad, but I know the formulas but I don't see how to convert this:

Edit: Oh ok I see how to convert the first one now, but the second one confuses me on how to convert this:

3. (fill in the values) -sqrt(3) - 1 / 1 (-sqrt(3)) x 1

to this:

4. (Final answer) 2 [plus] sqrt(3)