Question

a^1,31*a^0.69/a^-1.32*a^-2.68 при a=2.5

Answer 1

=$frac{a^2}{a^4}$=a^-2
a=2.5   => 2.5^-2 =$frac{1}{2.5^2}$=$frac{1}{6.25}$=0.16