Find limx→01+x−1−x/2x2\lim_{x \to 0} \frac{\sqrt{1+x} - 1 - x/2}{x^2}limx→0x21+x−1−x/2.
1/81/81/8
−1/8-1/8−1/8
1/41/41/4
−1/4-1/4−1/4