Nila lim mendekat 0 (2sin^2 (x/2))/x sin x

Limit bentuk 0/0

lim(x->0)   2 sin² (1/2 x) / x. sin x =
lim(x->0)  2 sin 1/2 x . sin 1/2 x /  x . sin x
lim(x->0)  2sin 1/2 x /(x) . lim (x->0). sin 1/2 x  / sin x
x = 0 --> limit = 2 (1/2) .(1/2)  = 1/2