Задание 2 , пункт 2 решите пожалуйста

1) [latex] \frac{a ^{21} *a^{13} }{a^{31} } = \frac{a ^{21+13} }{a^{31} } = \frac{a^{33} }{a ^{31} } =a ^{33-31} =a^2 \\ \\ a=1.6 \\ 1.6^2=2.56 \\ a=-0.11 \\ (-0.11)^2=0.0121[/latex] 2) [latex] \frac{n^{48} }{n^{19}*n^{26} } = \frac{n^{48}}{n^{19+26} } = \frac{n^{48}}{n^{45} }=n ^{48-45} =n^3 \\ \\ a=0.3 \\ 0.3^3=0.027 \\ \\ a=-0.4 \\ (-0.4)^3=-0.064[/latex]