Question

y=(u-2)³ and u=1/2x=1

Answer 1

$Given,y=(u-2)^3.\\ \text{Substitute}\space u=\frac{1}{2x}=1\\\space \text{in the given equation, we obtain,}\\ y=(\frac{1}{2x}-2)^3\\ y=(1-2)^3 \space( given\frac{1}{2x}=1)\\ y=(-1)^3\\ y=-1$