Answer and Step-by-step explanation:
1. Set equivalence:
The set that is equivalent to (B∪A)∪C is C∪(B∪A).
2. Set identity:
The set identity that shows the two sets are equivalent is the associative property of union, which states that for any sets A, B, and C, (A∪B)∪C = A∪(B∪C). In this case, the two sets (B∪A)∪C and C∪(B∪A) are equivalent due to the associative property of union.
3. Elements of {a,b}4:
The set {a,b}4 represents all possible strings of length 4 using the elements "a" and "b". The elements that are part of this set are:
- aa
- aaa
- baa
- abba
- aba
4. Corresponding element in f(x):
In the function f(x) = ⌊2x⌋, the circled x corresponds to the input variable x.
5. Properties of f(x):
The properties that describe the function f(x) are:
- It is a floor function, denoted by the symbol ⌊⌋, which means that it rounds down to the nearest integer.
- It multiplies the input x by 2.
- It returns the integer part of the result, discarding any decimal places.