[tex]\\ \sf\longmapsto \left\{\left(-\dfrac{3}{4}\right)^5\right\}^2[/tex]
[tex]\\ \sf\longmapsto \left\{-\dfrac{3^5}{4^5}\right\}^2[/tex]
[tex]\\ \sf\longmapsto \left\{-\dfrac{243}{1024}\right\}^2[/tex]
[tex]\\ \sf\longmapsto \dfrac{3^{10}}{4^{10}}[/tex]
[tex]\\ \sf\longmapsto \dfrac{59049}{1048568}[/tex]
