Page 1 of 8
MAT3701
ASSIGNMENT 4
Linear Algebra III
FULL
SOLUTIONS
COMPLETE SOLUTIONS
MEMORANDUM
UNISA 2026
, Page 2 of 8
SOLUTIONS:
Question 1
Given:
1 1
𝐴=( )
1 1
1
(1.1) Verify that 𝑣1 = ( ) is an eigenvector and find its eigenvalue.
−1
Compute:
1 1 1 1(1) + 1(−1) 0 1
𝐴𝑣1 = ( )( ) = ( ) = ( ) = 0 ⋅ ( ).
1 1 −1 1(1) + 1(−1) 0 −1
MAT3701
ASSIGNMENT 4
Linear Algebra III
FULL
SOLUTIONS
COMPLETE SOLUTIONS
MEMORANDUM
UNISA 2026
, Page 2 of 8
SOLUTIONS:
Question 1
Given:
1 1
𝐴=( )
1 1
1
(1.1) Verify that 𝑣1 = ( ) is an eigenvector and find its eigenvalue.
−1
Compute:
1 1 1 1(1) + 1(−1) 0 1
𝐴𝑣1 = ( )( ) = ( ) = ( ) = 0 ⋅ ( ).
1 1 −1 1(1) + 1(−1) 0 −1