计算(int )_(c)_(c)dfrac (cos z)((z-dfrac {1)(2))(z-1)}dz,其中(int )_(c)_(c)dfrac (co
3.6 计算oint_(c)(1)/(z^2)-zdz,其中C为圆周|z|=2.3.6 计算$\oint_{c}\frac{1}{z^{2}-z}dz$,其中C
曲线C为正向圆周|z|=2, (int )_(c)dfrac (cos z)({(z-1))^3}dz=曲线C为正向圆周A.0B.C.D.
曲线C为正向圆周|z-1|=3, (int )_(c)^3dfrac (3)(2)dz=|z-1|=3, (int )_(c)^3dfrac (3)(2)dz=
计算积分oint_(c)(1)/(z^101)(1-z^(2))dz,C为正向圆周|z|=1/2.计算积分$\oint_{c}\frac{1}{z^{101}(
设C:|z-2|=5为正向圆周,则int dfrac (2{z)^3+3(z)^2+2z+1}(z)dz=()A、2πіB、πі; C、i;D、0;设C:|z-
曲线 C 为正向圆周 |z-1|=3,int_(C) (1)/(z^3(z-2)^2) , dz=A. $\frac{3}{8}\pi i$B. $\frac{
设 C 为正向圆周 |z|=2,则 int_(C) (z+e^z)/((z+1)^4) dz = ( )A. $\frac{\pi i}{3e}$B. $\fr
4.不用计算,验证下列积分之值为零,其中C均为单位圆周 |z|=1.-|||-(1) (int )_(c)^dzdfrac (dz)(cos z);-|||-(
12.计算下列各积分,C为正向圆周:1)oint(z^15)/((z^2)+1)^(2(z^4+2)^3)dz,C:|z|=3;2)oint(z^3)/(1+z