A = {a, b, c, d, e, f, g, x, y, z), B = {c, r, a, z, y}. Find the following. (See Example 1.) (a) n(A) (b) n(B) (c) n(An B) (d) n(A U B)

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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1.) A = {a, b, c, d, e, f, g, x, y, z}, B = {c, r, a, z, y}.

1a.) n(A)

1b.) n(B)

1c.) n(A ∩ B)

1d.) n(A ∪ B)



Here is the transcription of the text from the image suitable for an educational website, including explanations for any mathematical expressions:

---

### Set Operations and Cardinality

Consider the sets \( A \) and \( B \) defined as follows:

\[ A = \{a, b, c, d, e, f, g, x, y, z\} \]

\[ B = \{c, r, a, z, y\} \]

We are to find the following:

(a) \(n(A)\)  
(b) \(n(B)\)  
(c) \(n(A \cap B)\)  
(d) \(n(A \cup B)\)  

**Explanation:**

- **(a) \(n(A)\)**: This represents the cardinality of set \(A\), which is the number of elements in set \(A\). 
- **(b) \(n(B)\)**: This represents the cardinality of set \(B\), which is the number of elements in set \(B\).
- **(c) \(n(A \cap B)\)**: This represents the cardinality of the intersection of sets \(A\) and \(B\), which is the number of elements that are common to both sets.
- **(d) \(n(A \cup B)\)**: This represents the cardinality of the union of sets \(A\) and \(B\), which is the total number of distinct elements in either set.

To calculate these, follow these steps:

1. **Finding \(n(A)\)**:
   List the number of distinct elements in set \(A\).

   \[ A = \{a, b, c, d, e, f, g, x, y, z\} \]
   **Number of elements**: 10

2. **Finding \(n(B)\)**:
   List the number of distinct elements in set \(B\).

   \[ B = \{c, r, a, z, y\} \]
   **Number of elements**: 5

3. **Finding \(n(A \cap B)\)**:
   List the elements that are common to both sets \(A\) and \(B\).

   \[ A \cap B = \{a, c, y, z\} \]
   **Number of common elements**: 4

4. **Finding \(n(A \cup B
Transcribed Image Text:Here is the transcription of the text from the image suitable for an educational website, including explanations for any mathematical expressions: --- ### Set Operations and Cardinality Consider the sets \( A \) and \( B \) defined as follows: \[ A = \{a, b, c, d, e, f, g, x, y, z\} \] \[ B = \{c, r, a, z, y\} \] We are to find the following: (a) \(n(A)\) (b) \(n(B)\) (c) \(n(A \cap B)\) (d) \(n(A \cup B)\) **Explanation:** - **(a) \(n(A)\)**: This represents the cardinality of set \(A\), which is the number of elements in set \(A\). - **(b) \(n(B)\)**: This represents the cardinality of set \(B\), which is the number of elements in set \(B\). - **(c) \(n(A \cap B)\)**: This represents the cardinality of the intersection of sets \(A\) and \(B\), which is the number of elements that are common to both sets. - **(d) \(n(A \cup B)\)**: This represents the cardinality of the union of sets \(A\) and \(B\), which is the total number of distinct elements in either set. To calculate these, follow these steps: 1. **Finding \(n(A)\)**: List the number of distinct elements in set \(A\). \[ A = \{a, b, c, d, e, f, g, x, y, z\} \] **Number of elements**: 10 2. **Finding \(n(B)\)**: List the number of distinct elements in set \(B\). \[ B = \{c, r, a, z, y\} \] **Number of elements**: 5 3. **Finding \(n(A \cap B)\)**: List the elements that are common to both sets \(A\) and \(B\). \[ A \cap B = \{a, c, y, z\} \] **Number of common elements**: 4 4. **Finding \(n(A \cup B
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