It's a digi World! #25

Its a NAND gate where (A * B) inverse = X, apart from all the inputs were one the result will be one , 0 * 0 * 0 = 1

At nand gate if any one input is low output will high so answer is high(1).

For any number of given input the AND gate will simply multiply it and hence the product of three zeros will also be zero and applying NOT to it will make the value 1.

the picture given is the nand gate means,(and gate)+(not gate). and the input has three terminal, first of all think what will be the out put when and gate has input(0 0 0) the out put will be 0. and this output will be the input of not gate and the out produce will be 1. which will be the output of nand gate also

$$ The picture above is a symbol of NAND gate ( Negated AND or NOT AND ), a logic gate which produces an output that is false only if all its inputs are true; thus its output is complement to that of the AND gate. A LOW ( $0)$ output results only if both the inputs to the gate are HIGH ( $1$ ); if one or both inputs are LOW ( $0)$ , a HIGH ( $1)$ output results.

0^0^0 = 0^0 = 0 after wards processing through NOT gate then it becomes 1

HAHAHHA