Q1 Expand \( \frac{1}{(z-10)(z-20)} \), as a power series in \( z \) in the region \( |z-1|<1 \). [10 Marks] [CO3L4]
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Assume: \[ \frac{1}{(z-10)(z-20)} = \frac{A}{z-10} + \frac{B}{z-20} \] Show more…
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