Question: 2. An alternative approach to constructing a full adder is to use half adders, as shown below: ci xi* sha1 * si cha2 yit cha1

2. An alternative approach to constructing a full adder is to

2. An alternative approach to constructing a full adder is to use half adders, as shown below: ci xi* sha1 * si cha2 yit cha1 ci+1 The first half adder adds x; and y; to give Chai and Shai and the second half adder adds ; and shal to generate Cha2 and sj. Ci+1 is calculated by ORing Chai and Cha2. Calculate the cost and determine the critical path delay for this design

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