Evaluate the following limit using power series: limx→0cos(x)−1+x22x2sin2(x)\lim_{x\to 0} \frac{\cos(x) - 1 + \frac{x^2}{2}}{x^2 \sin^2(x)}limx→0x2sin2(x)cos(x)−1+2x2
124\frac{1}{24}241
112\frac{1}{12}121
000
16\frac{1}{6}61