Lim x menuju ~ = (sin 4x - sin 2x) : 6x

[tex] \lim_{x \to \infty} (sin 4x -sin 2x) /6x = \lim_{x \to \infty} sin4x/6x-sin2x/6x[/tex]

Karena [tex] \lim_{x \to \infty} sin ax /bx = a/b , maka \lim_{x \to \infty} sin 4x/6x - \lim_{x \to \infty} sin 2x/6x = [/tex]
4/6-2/6 = 2/6 = 1/3