The expression
(c3d2)14\displaystyle {\left({c}^{{3}}{d}^{{2}}\right)}^{{-\frac{{1}}{{4}}}}

equals 1crds\displaystyle \frac{{1}}{{{c}^{{r}}{d}^{{s}}}} where
r, the exponent of c, is:  
s, the exponent of d, is: