INTEGRATION Integrate by the first method or state why it does not apply and use the second method. Show the details.

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9-19 CAUCHY'S THEOREM APPLICABLE? Integrate f(z) counterclockwise around the unit circle. Indicate whether Cauchy's integral theorem applies. Show the details. 9. f(z) = exp -2 2) 10. f(Z) = tan 4Z 11. f(z) = 1/(2z - 1) 12. f(z) = Z 3