Christians use the equation 1x1x1=1 to describe how Jesus, the Father, and the Spirit are all one.
I am assuming that each '1' in the equation represents a form of God. Since we are representing forms, lets look at the equation with the proper terms... variables.
Jesus will be A
the Father will be B
and the Spirit will be C
AxBxC=ABC
This oviously does not work because even a seventh grader can tell you that ABC is the condensed form of AxBxC, so we are right back where we started.
Since the Trinity is not able to be proven, it must be false.