Integrating Along C: Solving ∫ tan(z/2)/(z+π/2)(z-π/2)² dz

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SUMMARY

The discussion focuses on solving the integral ∫ tan(z/2)/((z+π/2)(z-π/2)²) dz along the contour C defined by |z| = 4. Participants confirm that using the residue theorem is appropriate for this integral, as the Cauchy Integral Formula does not directly apply. The challenge lies in identifying a suitable function g(z) that is analytic within the contour. The use of Laurent series is suggested as a potential method for evaluating the integral.

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  • Ability to work with Laurent series expansions.
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Homework Statement



∫[itex]\frac{tan(\frac{z}{2})}{(z+\frac{\pi}{2})(z-\frac{\pi}{2})^{2}}[/itex] dz

integration along C: abs(z) = 4

(along the circle of radius is 4)

Homework Equations



Cauchy Integral Formula

The Attempt at a Solution



I tried to set g(z) that is analytic inside C but I cannt set it.

Do I have to use Laurent seires or residue or something?
 
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jiho.j said:
I tried to set g(z) that is analytic inside C but I cannt set it.

Do I have to use Laurent seires or residue or something?
Yes, nothing comes to mind quickly for you to use the Cauchy Integral formula. It should be fine using residues though.
 

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