# Mathematics-ct1

**Option #1: Set Theory Option 1**

- Use the Venn diagram below to answer the following questions

- What regions represent (A B) C?
- What regions represent (A B) C

Find the cardinal number for each of the following sets.

- C = {x I x is letter in the word six}
- B = {x I x < 4 and x â‰¥ 12}

Determine the number of subsets and proper subsets for each of the following.

- {2,4,6,8,10,12}
- {x I x is a day of the week}

Requirements:

- Show all your work so that the instructor clearly sees how you solved the problem.
- Make sure your final answer is clear and visible.