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Step 1 of 3 4.055E Equality of two bits say, is denoted by X =PQ+P'Q' If the bits are equal else unequal. The truth table for 3-bit comparator is shown in Table 1: PQ 0 0 1 P2 = 0 0 1 = > 0 0 1 = = = 0 1 0 1 0 0 = Q₂ 1 0 0 = Q₂ =