Construct a truth table with $3$ inputs $(x,y,z)$ and $3$ outputs $(f,g,h)$ or three truth

tables each of which has $3$ inputs and $1$ output $,$ or $h).$ Show which of the three functions are

equal. $($Be sure to state whether they are equal.$)$

$f=y^{\text{'}}{z}^{\text{'}}+x^{\text{'}}y+x^{\text{'}}y{z}^{\text{'}}$

$g=x{y}^{\text{'}}+x^{\text{'}}{z}^{\text{'}}+x^{\text{'}}y$

$h=(x^{\text{'}}+y^{\text{'}})(x+y+z^{\text{'}})$