Problem 2: Compute for the determinants of the following matrices 5 - 3 2 - 2 - 3 4 3 2 C = 0 2 2 3 1 - 5 1 Use Pivotal Element Method 4 - 3 1 4 2 – 1 2 - 1 2 1 - 3 2 1 - 1 2 Use any method - 1 2 E 1 - 1 1 - 1 2 1 - 1 - 1 1 - 2 - 1 - 1

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Problem 2: Compute for the determinants of the following matrices
5
- 3
- 2
- 3
9
4
3
2
C = 0
2
3
1 Use Pivotal Element Method
4
1
4
- 3
- 5
2
1
2
- 1
- 1
2
1
- 3
1
2
1
1
2
- 2
- 1
E =
1
- 1
- 1
– 1
Use any method
2
1
1
- 1
1
- 2
– 1
1
2
2.
Transcribed Image Text:Problem 2: Compute for the determinants of the following matrices 5 - 3 - 2 - 3 9 4 3 2 C = 0 2 3 1 Use Pivotal Element Method 4 1 4 - 3 - 5 2 1 2 - 1 - 1 2 1 - 3 1 2 1 1 2 - 2 - 1 E = 1 - 1 - 1 – 1 Use any method 2 1 1 - 1 1 - 2 – 1 1 2 2.
Expert Solution
Step 1

To find the determinant of the matrix by the pivotal element method, use the following steps.

  • Choose the element 1 in the matrix as a pivotal element and cross out the row and column through the pivotal element.
  • Suppose aij is a pivotal element of an n×n matrix A. Then, the determinant of the matrix A is calculated  as follows.detA=-1i+jdetB, where B is a matrix of order n-1×n-1 which is obtained by subtracting the product of elements in pivotal row and column from the remaining entries of the matrix.
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