Question 1 (a) Minimise the following Boolean expressions using Boolean algebra or Karnaugh maps, and draw the logic circuit for each minimised expression: (i) A.B.C + A.B.C + A.B.C + A.B.C + A.B.C A.B.C.D+ A.B.C.D+ A.B.C.D+ A.B.C.D+ A.B.C.D + A.B.C.D (iii) A+ A.B + A.C (b) Explain, with the aid of a truth table, the operation of an 8-to-3 bit encoder and derive Boolean expressions of the output of the encoder.

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