If X and Y are Boolean variables, then X + Y represents disjunction (OR) and XY represents conjunction (AND), and X' denotes the negation (NOT). So X + Y = 1 if either X = 1 or Y = 1, and XY = 1 only if both X = 1 or Y = 1.
Now,
(X + Y) (X + Y') = XX + YX + XY' + YY'
… = X + X (Y + Y') + 0
… = X + X
… = X
or in table form,
Answer:
2.09 is less than 2.1
Step-by-step explanation:
2.1 is the same as 2.10
so 2.10 is greater than 2.09.
I think because the absolute value is always a positive number.