Ok, I just need this quick question:

I will give about 50 points for an answer and if there is two answers, I will mark the first one as brainliest.

Ok I just need this quick question I will give about 50 points for an answer and if there is two answers I will mark the first one as brainliest class=

Respuesta :

I think - 4 sin [tex]\frac{x}{2}[/tex] - 1 its probably wrong but I attempted it sorry if wrong.