si tengo una T elevado a la -2 multiplicado por T elevado ala 2 cuanto es

dado que  $${{\mathtt{x}}}^{{\mathtt{m}}}{\mathtt{\,\times\,}}{{\mathtt{x}}}^{{\mathtt{n}}} = {{\mathtt{x}}}^{\left({\mathtt{m}}{\mathtt{\,\small\textbf+\,}}{\mathtt{n}}\right)}$$  entonces  $${{\mathtt{T}}}^{{\mathtt{\,-\,}}\left({\mathtt{2}}{\mathtt{\,\times\,}}{{\mathtt{T}}}^{{\mathtt{2}}}\right)} = {{\mathtt{T}}}^{\left({\mathtt{\,-\,}}{\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}}\right)} = {{\mathtt{T}}}^{{\mathtt{0}}} = {\mathtt{1}}$$