Show that does not exist.
Let x = 0 + h, when x is tends to 0+
Since x tends to 0, h will also tend to 0.
Right Hand Limit(R.H.L.):
=
= sin ∞
= ∞
Let x = 0 - h, when x is tends to 0-
Since x tends to 0, h will also tend to 0.
Left Hand Limit(L.H.L.):
=
=
= - sin ∞
= -∞
Since,
∴ does not exist.