Practice problem
Find the sum of the following series: 12+14−18+116+132−164+1128+1256−1512+⋯\frac12+\frac14-\frac18+\frac1{16}+\frac1{32} - \frac1{64} + \frac1{128} + \frac1{256} - \frac1{512} + \cdots21+41−81+161+321−641+1281+2561−5121+⋯
111
57\frac{5}{7}75
67\frac{6}{7}76
17\frac{1}{7}71
Type a concept, like “slope” or “photosynthesis”.
