Ga four-input digital circuit is used to detect whether the resulting product of two two-bits numbers is greater or equal than 3. consider that the two-bit numbers are given as the inputs ba and dc. so, your design will implement a function x (d, c, b, a) that is "0" if the product of ba x dc is less than 3 and "1" if it is greater or equal than 3. for example if your inputs are (d, c, b, a) = 1010, then the result value is "1" (x (d, c, b, a) =1), since ba =10 (210 ) and dc =10 (210)and the product will be 4, which is greater or equal than 3. on the other hand, if for example, (d, c, b, a) = 1001 then (x (d, c, b, a)=0), since ba =01 (110) and dc =10 (210) with a product equals to 2. the minterm expression for the function x (d, c, b, a) is:

Tthe minterm expression for the function X is:

X = B'ADC + BA'DC' + BA'DC + BAD'C + BADC' + BADC

(The character ' refers to the complement of the variable)

Step-by-step explanation:

It is important to know that a minterm refers to a product of all variables that have a result of 1 in the truth table. The variables can be with or without complement. For example, consider the following truth table:

A, B, F

0, 0, 0

0, 1, 0

1, 0, 0

1, 1, 1

According to the previous truth table, the minterm would the row that F equals 1. In this case, when A and B are 1, F is 1. So, the variables are used directly (without complement). The minterm is: F = AB

Now, according to the problem, the truth table is presented below. The idea is to complete the X column which is '0' if the product BA x DC is less than 3 and is '1' if the product BA x DC is greater or equal than 3.

The idea is to get the rows that have '1' in the X column. The minterms are are: 8, 11, 12, 14, 15 and 16. The minterm is composed by the four variables. To indicate a '1' just put the letter. To indicate a '0' put a letter with this character: '. For example, the row 8 would be B'ADC, because B is '0' and the others are '1'. The total minter expression is:

X = 'minterm 8' + 'minterm 11' + 'minterm 12' + 'minterm 14' + 'minterm 15' + 'minterm 16'

X = B'ADC + BA'DC' + BA'DC + BAD'C + BADC' + BADC

Thus, the minterm expression for the function X is:

X = B'ADC + BA'DC' + BA'DC + BAD'C + BADC' + BADC

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

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step-by-step explanation: