a. JRT+RRT

5.

Boolean Algebra is a method of mathematically representing logical

b. LMM+LML

operations. In order to represent logical operations, a set of basic

+LMT

laws and identities has been developed for Boolean Algebra. It is not

c. PT+PP+PPT

as important to know these laws and identities by name as it is to

d. AN+AC+NN

+NC

know when and how to put them to use. One of the basic laws of

Boolean Algebra is the law of IDENTITY, which states: "Any letter,

number, or expression is equal to itself." For example, A = A; B = B

C = C; RJ = RJ; etc. The switching-circuit diagram and the truth

table of the law of IDENTITY are shown below.

LAW OF IDENTITY

Select examples of the law of IDENTITY from the following.

a. 1 = 1

e. A = B

b. A = B

f. O = O

c. A = 1

g. A = A

d. B = B

h. AB = AB

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