Question

Помогите 2-3 пожалуйста ​

Answer 1

$\Big(\dfrac{1}{3}\Big)^{-1}=3\\\\\\\Big(\dfrac{2}{5}\Big)^{-2}=\Big(\dfrac{5}{2}\Big)^{2}=\Big(\dfrac{25}{4}\Big)}=6,25\\\\\\(-0,1)^{-4} =(-10)^{4} =10000\\\\\\\Big(2\dfrac{1}{3}\Big)^{-2}= \Big(\dfrac{7}{3}\Big)^{-2}=\Big(\dfrac{3}{7}\Big)^{2}=\Big(\dfrac{9}{49}\Big)\\\\\\8^{-1}+6^{-2}=\Big(\dfrac{1}{8}\Big)+\Big(\dfrac{1}{36}\Big)=\dfrac{9+2}{72} =\dfrac{11}{72}\\\\\\2,4^{-1}+5^{0}=\Big(\dfrac{24}{10}\Big)^{-1}+1=\dfrac{10}{24}+1=\dfrac{5}{12}+1=1\dfrac{5}{12}$

$1453-0,1^{-3} =1453-10^{3} =1453-1000=453\\\\\\18-\Big(\dfrac{1}{5}\Big)^{-2}==18-5^{2}=18-25=-7$