Ahh I cant solve this its driving me crazy?

Question

lim

x-> 0 (2sin x - 1)

Answer 1

just check this link once

Answer 2

As x approaches 0, then 2sin x approaches 0 as well.

Hence, as x approaches 0,

(2 sin x - 1) = 0 -1 = -1

Hope this helps.

Answer 3

as x->0, sin(x) also goes to 0 because sin(0)=0

2*0-1= -1