if xy+z = x(y+z) then which of the following must be true?
a) x=0 z=0
b) x=1 y=1
c) y=1 z=0
d) x=1 z=0
e) x=1 z=0
OA is E
a) x=0 z=0
b) x=1 y=1
c) y=1 z=0
d) x=1 z=0
e) x=1 z=0
OA is E
xy+z = x(y+z) -> xy+z = xy+xz -> z=xz-> you can eliminate choices b and c since it doesnt matter what the y value is.deagez wrote:if xy+z = x(y+z) then which of the following must be true?
a) x=0 z=0
b) x=1 y=1
c) y=1 z=0
d) x=1 z=0
e) x=1 z=0
OA is E
if z=xz then x must either be 1 or z =0.
hope that helps.
