Question

If the two inputs of a two-input NAND gate are diferent values, what is the
output value of the NAND gate?

Answer 1

A NAND gate outputs a LOW (0) signal only when both of its inputs are HIGH (1). In all other cases, including when the two inputs have different values (i.e., one input is HIGH and the other is LOW), the output will be HIGH (1).

So, if the two inputs of a two-input NAND gate are different (one is 0 and the other is 1), the output value will be 1.