N}}\] \[\LEFT[ {{M}^{0}}L{{T}^{0}} \RIGHT]={{\left[ L{{T}^{-2}} \right]}^{m}}{{\left[ T \right]}^{n}}=\left[ {{L}^{m}}{{T}^{-2m+n}} \right]\] \[\therefore \] \[m=1\] and \[-2m+n=0\]Þ \[n=2\].