Okay, here it is. You can do it in any of these ways :-
So we have multiplied and divided by x
now using this
(You can try this yourself. Just apply L'hospital and you will get it)
we get the limit as 1*x as x->0
(Where f(x) = x^2)
so it becomes 0
2:- Just Apply L'hospital as both the numerator and denominator are tending to zero.
You will get
which tends to 0 as x-> 0
Spare me for my poor Latex. I am trying to learn.