Also it may be something from the group theory, I guess.

Ricky

2005-12-24 02:23:46

I've only seen Z refer to integers, but like what krassi said, we need the context as well.

austin81

2005-12-24 00:47:04

Are you treating complex numbers? If yes, then Z represents a complex number of the form z= x+yi. And z/6z=x+yi/6(x+yi). Rationalise:x+yi(x-yi)/6(x+yi)(x-yi) = (x^2+y^2)/6(x^2+y^2) =1/6 NB!!! This is if you saw this under complex numbers.