I figure this question belongs here, im new to the site and if im wrong then I apologies its abit of an inbetweener and feel free to move it if neccassary.
Assuming that S and T are subspaces of V3(c) generated by
[(1,1,0),(i,1+i,1),(1+i,1+i,0)] and [(1,0,1),(i,-i,0),(0,i,i)],
respectively. Determine C-bases for S, T, S &(usually funny n like symbol) T and S + T