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The residue at the singular point z = -2 of 

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  2. 1/3
  3. 4/3
  4. 3/2

Answer (Detailed Solution Below)

Option 2 : 1/3
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Detailed Solution

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Residue Theorem:

If f(z) is analytic in a closed curve C except at a finite number of singular points within C, then

Formula to find residue:

1. If f(z) has a simple pole at z = a, then

2. If f(z) has a pole of order n at z = a, then

Calculation:

= = 1/3

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