Lim x-> 0 sin 1/3 x /x

Lim x→0 (sin ax)/x =a
Lim x→0 (sin 1/3 x)/x=1/3

Langsung aja ya

ingat
Lim x->0 sin ax/bx = a/b

maka

Lim x->0 sin1/3x /x = 1/3 /1 = 1/3