Mohon master ! Mohon bantuannya master Matematika

Limit  trigonometri
bentuk 0/0

lim(x->0)  (1 - cos² x) / (sin 2x. tan x) =
..
1- cos² x = sin² x
,
lim(x->0)  ( sin²  x)/ (sin 2x . tan x)
x = 0
= (sin x )(sin x)/(sin 2x. tan x)
= x(x)/ (2x)(x)
= 1/2