Identify the logic gates marked `P` and `Q` in the given logic circuit Fig. Write down then output at `X` for the inputs (i) `A=0,B=0` and (ii) `A=1, B=1`.
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Here, gate P is NAND gate and gate Q is OR gate. The Boolean expression for output at X is `X=y^(')+B=(bar(A.B))+B` The Truth table is as shown in Fig.
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