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4.7 Each of three coins has two sides, heads and tails. Represent the heads or tails sta-

tus of each coin by a logical variable (A for the first coin, B for the second coin, and

C for the third) where the logical variable is 1 for heads and 0 for tails. Write a logic

function F(A, B, C) which is 1 iff exactly one of the coins is heads after a toss of the

coins. Express F

(a) as a minterm expansion.

(b) as a maxterm expansion.

Fig: 1