Evaluate limx→0cosx−1+x22x4\lim_{x \to 0} \frac{\cos x - 1 + \frac{x^2}{2}}{x^4}limx→0x4cosx−1+2x2.
124\frac{1}{24}241
112\frac{1}{12}121
000
12\frac{1}{2}21