two

30.

On a four-square Veitch diagram, a two-

two

variable term, such as

AB, CA, EB, OK,

AC, etc., occupies only one square.

For

example, the expression AB+AB contains two

terms (AB and AB).

Each term contains two

variables; therefore, each two-variable term

will occupy only one square on a four-square

Veitch diagram.

For the expression XY+XY, each term contains

______________ variables, and each term will

occupy_____________________________ on a

four-square Veitch diagram.

two

31.

To plot the expression AB+AB on a Veitch

one square

diagram, work only

one term at a time.

Start with the first term on the left (AB).

As stated previously, a two-variable term

occupies only one square on a four-square

Veitch diagram.

To determine the proper

square, take each variable of the term (AB)

and determine which square is common to both

variables as follows:

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