a.
R+S
89.
To simplify a four-variable expression,
using
b.
B+AD+ADF
the Veitch-diagram
method, the
expression must be in minterm form (all
parentheses
(Solution on
removed and all vincula broken).
To
simplify
page 1-68.)
the expression (AB+AC)D+D+C+A+ABCD, first
convert to minterm form, as shown below.
(AB+AC)D + D + C + A + ABCD
Distributive De Morgan's theorem
ABD + ACD + DCA + ABCD
Double
negative
ABD + ACD + DCA + ABCD
To simplify a four-variable expression,
using the Veitch-diagram method, the
expression must be in
___________________________
___________________.
minterm form
90.
TEST FRAME
After converting the expression to minterm
form, the next step is to draw a Veitch
diagram.
For the expression
ABD+ACD+DCA+ABCD, there are four variables;
therefore, a 16-square Veitch diagram (24 =
16) is required.
The expression is plotted
as follows:
Plot only one term at a time until all terms
of the expression have been plotted:
ABD+ACD+DCA+ABCD.
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