Dokazite\ da\ je 
\\
\\ M=\{\(z_1,z_2,z_z_3,z_4 \in C^{4}\ z_1+iz_2-z_4=0, z_1+z_3-iz_4=0\}
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\\ potprostor\ vektorskog\ prostora\ C^{4}\ pa\ mu\ odredite\ jednu\ bazu\ i\ nadopunite\ je\ do\ baze\ prostora\ C^{4}.