Question: A full subtracter computes the difference of three inputs X, Y, and B in , where Diff = X - Y - B in .

A full subtracter computes the difference of three inputs X, Y, and B_in, where Diff = X - Y - B_in. When X < (Y + B_in), the borrow output B_out is set. Fill in the truth table for the subtracter and derive the sum-of-products and product-of-sums equations for Diff and B_out.

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