MAT3701 Assignment 4 Solutions 2026
UNISA
DUE: 15 JULY 2026
, Question 1
Given
1 1
𝐴=( )
1 1
Question 1.1
Verify that
1
𝑣1 = ( )
−1
is an eigenvector and determine its eigenvalue.
Calculate
1 1 1
𝐴𝑣1 = ( )( )
1 1 −1
First row:
1(1) + 1(−1) = 0
Second row:
1(1) + 1(−1) = 0
Hence
0
𝐴𝑣1 = ( )
0
Since
1 0
0 ( ) = ( ),
−1 0
we obtain
𝐴𝑣1 = 0𝑣1 .
Therefore
UNISA
DUE: 15 JULY 2026
, Question 1
Given
1 1
𝐴=( )
1 1
Question 1.1
Verify that
1
𝑣1 = ( )
−1
is an eigenvector and determine its eigenvalue.
Calculate
1 1 1
𝐴𝑣1 = ( )( )
1 1 −1
First row:
1(1) + 1(−1) = 0
Second row:
1(1) + 1(−1) = 0
Hence
0
𝐴𝑣1 = ( )
0
Since
1 0
0 ( ) = ( ),
−1 0
we obtain
𝐴𝑣1 = 0𝑣1 .
Therefore