If `R` is the set of all real numbers, what do the cartesian products `R xx R` and `R xx R xx R` represent?

Explanation

The Cartesian product `R xx R` represents the set `R^(prime) xx R=(x, y): x, y in R` . which repre sents the coordinates of all the points in two dimensional space and the cartesian product `R xx R xx R` represents.the set `R xx R xx R=(x, y, z): x, y, z in R`. which represents the coordinates of all the
points in three - dimensional. space.