Past Year SPM Questions (Matrices Paper 2)
Given that the inverse matix of A =
3 1
1. does not exist
6 k
a) Find the value of k
b) Write the following simultaneous linear equations as a matrix equation.
3x – 2y = 7
5x – 4y = 9
Hence, calculate the values of x and y using matrices.
( 6 marks )
2 3
2. a) Find the inverse matrix of .
5 6
b) Using matrices, calculate the value of x and of y that satisfy the following
simultaneous linear equations:
2x 3 y 1
5x 6 y 2
( 6 marks )
3 4 6 p
3. a) The inverse matrix of is m , find the value of m and of p.
5 6 5 3
b) Using matrices, calculate the value of x and of y that satisfy the following
simultaneous linear equations.
3x – 4y = -1
5x – 6y = 2
( 6 marks )
1 2 1 0
4. P is a 2 x 2 matrix such that P
3 4 0 1
a) Find the matrix P
b) Write the following simultaneous linear equations as a matrix equation:
x 2y 8
3x 4 y 6
Hence, using matrices, calculate the value of x and of y.
( 6 marks )
2 5 3 h
5. It is given that matrix P = and matrix Q = k such that
1 3 1 2
1 0
PQ =
0 1
a) Find the value of k and of h
b) Using matrices, find the value of x and of y that satisfy the following simultaneous
linear equations :
2x – 5y = -17
x + 3y = 8
( 6 marks )
1 4 2 n 2 1 0
6. (a) Given . Find the values of m and n.
m 5 3 5 4 0 1
(b) Using matrices, calculate the value of x and y that satisfy the following matrix
equation.
4 2 x 1
=
5 3 y 2
( 7 marks )
1 4 2 1 2 1 0
7. (a) Given that . Find the value of p and q.
p q 1 3 4 0 1
(b) Write the following simultaneous linear equations as matrix equation:
x 2y 2
3 x 4 y 11
Hence, using matrices, calculate the value of x and of y.
( 7 marks )
1 2
8. a) Find the inverse matrix of .
3 4
b) Write the following simultaneous linear equations as matrix equation:
x 2y 4
3x 4 y 2
Hence, using matrix method, calculate the value of x and of y.
( 6 marks )
SPM Past Years (Matrices Paper 1)
1. B
2. A
3. A
4. D
5. A
6. A
7. D
8. A
9. D
10. D
11. D
12. C
13. A
14. A
15. C
16. A
17. C
18. A
19. B
20. B
21. D
Answer (Matrices Paper 2)
3 2 x 7
1. a) k=2 b) , x = 5 , y = 4
5 4 y 9
1 6 3
2. a) b) x = -4, y = 3
3 5 2
1 6 4 1 11
3. a) m= , p = 4 b) x = 7, y =
2 5 3 2 2
1 4 2 1 2 x 8
4. a) b) , x = 2, y = -3
10 3 1 3 4 y 6
1
5. a) k = , h=5 b) x = -1, y = 3
11
1 3
6. a) m = - 2, n = 3 b) x = , y=
2 2
1
7. a) p = 10, q = 3 b) x = 3, y =
2
1 �4 2 �
8. a) � � b) x = 2, y = -1
10 �3 1 �