Question

How do you find the limit of `x^2-x^4` as x approaches `0^+`?

Answer 1

`lim_(x->0^+) x^2-x^4 = 0`

Explanation:

`f(x) = x^2-x^4`

is a polynomial function: as such it is continuous in all of `RR`, so that:

`lim_(x->0^+) f(x) = f(0) = 0`