9. 7 Exercise 3. Which of the following gives a diagonalization of -4 -2] 7 1) P = 0 2 2 0 0 5 1 2) P = - [ 7 1] [ 2 0 3)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 41E
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Question

Which of the following gives a diagonalization of see photo (is it a?)
9 7
−4 −2

?

1) P =

7 1
−4 −1

, D =

5 0
0 2

2) P =

1 7
−1 −4

, D =

2 0
0 5

3) P =

7 1
−4 −1

, D =

2 0
0 5

Answers:
a) Only 1
b) Only 1 and 2
c) All of them

**Exercise 3.** Which of the following gives a diagonalization of \(\begin{bmatrix} 9 & 7 \\ -4 & -2 \end{bmatrix}\)?

1) \( P = \begin{bmatrix} 7 & 1 \\ -4 & -1 \end{bmatrix}, \quad D = \begin{bmatrix} 5 & 0 \\ 0 & 2 \end{bmatrix} \)

2) \( P = \begin{bmatrix} 1 & 7 \\ -1 & -4 \end{bmatrix}, \quad D = \begin{bmatrix} 2 & 0 \\ 0 & 5 \end{bmatrix} \)

3) \( P = \begin{bmatrix} 7 & 1 \\ -4 & -1 \end{bmatrix}, \quad D = \begin{bmatrix} 2 & 0 \\ 0 & 5 \end{bmatrix} \)

**Answers:**
a) Only 1

b) Only 1 and 2

c) All of them
Transcribed Image Text:**Exercise 3.** Which of the following gives a diagonalization of \(\begin{bmatrix} 9 & 7 \\ -4 & -2 \end{bmatrix}\)? 1) \( P = \begin{bmatrix} 7 & 1 \\ -4 & -1 \end{bmatrix}, \quad D = \begin{bmatrix} 5 & 0 \\ 0 & 2 \end{bmatrix} \) 2) \( P = \begin{bmatrix} 1 & 7 \\ -1 & -4 \end{bmatrix}, \quad D = \begin{bmatrix} 2 & 0 \\ 0 & 5 \end{bmatrix} \) 3) \( P = \begin{bmatrix} 7 & 1 \\ -4 & -1 \end{bmatrix}, \quad D = \begin{bmatrix} 2 & 0 \\ 0 & 5 \end{bmatrix} \) **Answers:** a) Only 1 b) Only 1 and 2 c) All of them
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