### Educational Content: Matrix Operations #### Problem Statement: Find \( (3)BA + (4)AC \), if possible. #### Given Matrices: \[ A = \begin{bmatrix} 2 & -3 & 3 \\ 0 & 1 & 0 \end{bmatrix}, \quad B = \begin{bmatrix} -1 & 1 \\ 1 & 0 \end{bmatrix}, \quad C = \begin{bmatrix} -1 & 0 & 2 \\ 0 & 1 & -1 \\ 0 & -1 & 1 \end{bmatrix} \] #### Solution Steps: A. Calculate \( (3)BA + (4)AC \): \[ (3)BA + (4)AC = \] (Placeholder for the result) B. (Alternative Outcome) \[ \text{The matrix is not defined.} \] #### Explanation: To determine if the expression \( (3)BA + (4)AC \) is defined, we must check the dimensions of the resulting matrices from each multiplication. 1. **Dimensions of \( B \) and \( A \):** - Matrix \( B \): 2 rows × 2 columns. - Matrix \( A \): 2 rows × 3 columns. - Multiplying \( B \) and \( A \) requires the number of columns in \( B \) to equal the number of rows in \( A \), which is not the case here (2 ≠ 2). So, \( BA \) is not defined. 2. **Dimensions of \( A \) and \( C \):** - Matrix \( A \): 2 rows × 3 columns. - Matrix \( C \): 3 rows × 3 columns. - Multiplying \( A \) and \( C \) is defined and results in a matrix with dimensions 2 × 3. Given that \( BA \) is not defined: \[ \text{The matrix is not defined.} \] ### Conclusion: For the given matrices \( A \), \( B \), and \( C \), the expression \( (3)BA + (4)AC \) cannot be computed because \( BA \) is not a defined operation based on the matrix dimensions provided.
### Educational Content: Matrix Operations #### Problem Statement: Find \( (3)BA + (4)AC \), if possible. #### Given Matrices: \[ A = \begin{bmatrix} 2 & -3 & 3 \\ 0 & 1 & 0 \end{bmatrix}, \quad B = \begin{bmatrix} -1 & 1 \\ 1 & 0 \end{bmatrix}, \quad C = \begin{bmatrix} -1 & 0 & 2 \\ 0 & 1 & -1 \\ 0 & -1 & 1 \end{bmatrix} \] #### Solution Steps: A. Calculate \( (3)BA + (4)AC \): \[ (3)BA + (4)AC = \] (Placeholder for the result) B. (Alternative Outcome) \[ \text{The matrix is not defined.} \] #### Explanation: To determine if the expression \( (3)BA + (4)AC \) is defined, we must check the dimensions of the resulting matrices from each multiplication. 1. **Dimensions of \( B \) and \( A \):** - Matrix \( B \): 2 rows × 2 columns. - Matrix \( A \): 2 rows × 3 columns. - Multiplying \( B \) and \( A \) requires the number of columns in \( B \) to equal the number of rows in \( A \), which is not the case here (2 ≠ 2). So, \( BA \) is not defined. 2. **Dimensions of \( A \) and \( C \):** - Matrix \( A \): 2 rows × 3 columns. - Matrix \( C \): 3 rows × 3 columns. - Multiplying \( A \) and \( C \) is defined and results in a matrix with dimensions 2 × 3. Given that \( BA \) is not defined: \[ \text{The matrix is not defined.} \] ### Conclusion: For the given matrices \( A \), \( B \), and \( C \), the expression \( (3)BA + (4)AC \) cannot be computed because \( BA \) is not a defined operation based on the matrix dimensions provided.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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