Let C: |z-il=9. Then ſ. 1-z -dz = z(z+1) а) 0 b) 2ni c) -2ni d) 4ni e) — 4лі f) 2п а. b. С. d. е. O f.

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A: According to our guidelines we can answer only three sub-parts and rest can be reposted. 

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