Question

2 la puterea-1:(0,5)la puterea -3=va rog

Answer 1

2^(-1) : (5/10)^(-3)=
2^(-1): (1/2)^(-3)=
2^(-1):2^3= 2^(-1-3)= 2^(-4)

Answer 2

$2^{-1}:0,5^-^3= \frac{1}{ 2^{1} }: \frac{1}{ 0,5^{3} }= \frac{1}{2}* \frac{0,125}{1}= \frac{0,125}{2}=0,0625$