Acombinational logic circuit has four inputs (a, b, c, and d. and one output z. the output is 1 iff the input has three consecutive 0's or three consecutive 1's. for example, if a = 1, b = 0, c = 0, and d = 0, then z = 1, but if a = 0, b = 1, c = 0, and d = 0, then z = 0. design the circuit using one four-input or gate and four three-input and gates.

It's not possible to do it with the given gates only. If all four inputs were 0, you wouldn't be able to get a 1 from any combionation of AND gates. You have to incorporate NOR gates.

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step-by-step explanation:

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.