MCQOPTIONS
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| 1. |
f(z) = (z − 1)−1 − 1 + (z − 1) − (z − 1)2 + ⋯ is the series expansion of |
| A. | \(\frac{-1}{z(z-1)} ~for ~|z - 1| < 0\) |
| B. | \(\frac{1}{z(z-1)}~ for~ |z - 1| < 0\) |
| C. | \(\frac{1}{(z-1)^2} ~for ~|z - 1| < 0\) |
| D. | \(\frac{-1}{(z-1)} ~for~ |z - 1| < 0\) |
| Answer» C. \(\frac{1}{(z-1)^2} ~for ~|z - 1| < 0\) | |