Find the sum of the infinite geometric series: 12+14+18+116+...\frac{1}{2} + \frac{1}{4} + \frac{1}{8} + \frac{1}{16} + ...21+41+81+161+...
S=14S = \frac{1}{4}S=41
S=12S = \frac{1}{2}S=21
S=1S = 1S=1
Diverges