1.

The residues of a function \(f\left( z \right) = \frac{1}{{\left( {z - 4} \right){{\left( {z + 1} \right)}^3}}}\) are:

A. \( - \frac{1}{{27}}\;and - \frac{1}{{125}}\)
B. \(\frac{1}{{125}}\;and - \frac{1}{{125}}\)
C. \(- \frac{1}{{27}}\;and\frac{1}{5}\)
D. \(\frac{1}{{125}}\;and - \frac{1}{5}\)
Answer» C. \(- \frac{1}{{27}}\;and\frac{1}{5}\)


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