A trivial Boolean expression is one that. $(4\mathrm{.}2)$

always has the same value

uses only two operands

is always true

is always false

If $xy$ is true, then. $(4\mathrm{.}2)$

$x=y$ is true

$yx$ is true

$x>y$ is false

$x>y$ is false

If is true, then. $(4\mathrm{.}2)$

$j=k$ is true

$j>k$ is true

$j$ might $be$ true