Identify the behavior of f(x)=cos(x)−1+x2/2x4f(x) = \frac{\cos(x) - 1 + x^2/2}{x^4}f(x)=x4cos(x)−1+x2/2 as x→0x \to 0x→0.
The limit is 000.
The limit is 1/41/41/4.
The limit is 1/241/241/24.
The limit is 1/61/61/6.