Question

A={C,O,V,I, D, 19, 2020}, B={C,O,V,I, D, 19, 2021} then B-A=?

• A. {2020}
• B. {2021}
• C. {2020, 2021}
• D. {C,O,V,1,D, 19, 2020, 2021}

Answer 1

The Correct Option is B

To solve the problem, we need to find the difference of two sets, denoted as \( B - A \). This means we list the elements that are in set B but not in set A.

1. Write down the elements of each set:
Set A = {C, O, V, I, D, 19, 2020}
Set B = {C, O, V, I, D, 19, 2021}

2. Understand Set Difference \( B - A \):
This operation results in the elements that are in B but not in A.

3. Compare B and A:
All elements in B are present in A except for one element:
- 2020 is in A but not in B
- 2021 is in B but not in A

4. Determine the Difference:
The only element in B that is not in A is 2021.

Final Answer:
The correct answer is option (B): {2021}.