What is the boolean expression for the output $f$ of the combinational logic circuit of NOR gates given below?
The question is the realization of OR-AND(Product of Sum) using NOR gates.
This is the realization of (P+Q)(Q+R) using NOR gates.
AND-OR(SOP) circuit can be made using NAND- NAND circuit.
OR-AND (POS) can be made using NOR-NOR circuit.
@Bharti goyal 3rd line. you took R' common, then P' must be inside the bracket not R'
Try these one too