Solution

Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 8 / 1 / ii / Solution

Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 8 / 3 / Solution

Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 8 / 4 / Solution

Past exam of the mathematics course of the University of Cambridge / 2002 / ib / Paper 3 / 13G / a / Solution

Past exam of the mathematics course of the University of Cambridge / 2002 / iii / Paper 26 / 1 / Solution

Past exam of the mathematics course of the University of Cambridge / 2002 / iii / Paper 5 / 3 / Solution

Past exam of the mathematics course of the University of Cambridge / 2002 / iii / Paper 5 / 4 / Solution

Past exam of the mathematics course of the University of Cambridge / 2003 / ib / Paper 4 / 13E / a / Solution

Past exam of the mathematics course of the University of Cambridge / 2003 / iii / Paper 24 / 4 / ii / Solution

Past exam of the mathematics course of the University of Cambridge / 2004 / ib / Paper 4 / 14E / i / Solution

Past exam of the mathematics course of the University of Cambridge / 2004 / ib / Paper 4 / 4E / iii / Solution

Past exam of the mathematics course of the University of Cambridge / 2004 / iii / Paper 26 / 2 / Solution

Past exam of the mathematics course of the University of Cambridge / 2004 / iii / Paper 26 / 3 / ii / Solution

Past exam of the mathematics course of the University of Cambridge / 2005 / iii / Paper 86 / 1 / Solution

Past exam of the mathematics course of the University of Cambridge / 2006 / ib / Paper 3 / 14H / Solution

Past exam of the mathematics course of the University of Cambridge / 2007 / ib / Paper 3 / 14H / Solution

Past exam of the mathematics course of the University of Cambridge / 2007 / ib / Paper 4 / 4H / Solution

{wiki}

If a meromorphic function has no zeros or poles on a positively oriented boundary $\gamma$, then
$$
\frac1{2\pi i}\int_\gamma\frac{f'}f\,dz=N-P,
$$
with zeros and poles counted by multiplicity.


Argument principle

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