<prompt> Tathminiint_02 pi eleftei theta-i thetakulia d theta .  <response>: Kulingana na Mfumo Muhimu wa Cauchy wa viingilio, tunayokwa hiyo,kushoto.fracdd z ezkulia_z0frac12 pi i int_z1 frace zz2 d zfrac12 pi int_02 pi eei theta-i theta d thetaint_02 pi eei theta-i theta d theta2 pi . 