Math help: Let z= 2-i and w=3i-1 Evaluate: z-z/ 2i ( the line above the 2ed z that means to change it to the opposite) ( I believe it's called conjugate) And w-w/ 2( again with the line above the 2ed w ) So for Z I put (2-i) - (2+i) and than I foil to get my answer... is this correct since its not being multiplied across or yes? For W I put (3i-1)+ (3i+1)/2 I don't think I'm getting this right? Anybody have an opinion?.