Let us now also set up the cube-roots of [ W1 ] as being [ T1 ] , [ T2 ] and [ T3 ] respectively .
We then have :
where :
with :
and
Thus , we have now established this relation :
We then set up :
We then have :
We can then re-write the above 3 equations in this manner :
We then have :
We then have :
next .