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1.

Given matrix of A =
(22 33 ) and I =
(10 01 ). If ( A – k.I ) is matrix singular, k = .....
2 3 2 0 −5 −6
2. If A =
( ) 1 0 ,B=
(1 3 ) , and C =
(2 8) , the determinant of AB + C
T

is .....

3. If for matrix of A =
(2ba 3c4 ) and B =
(2c−3b
2a+1
a
b+7 ) satisfies A = 2B, the invers
from matrix A is .....

4. Given the system of linear three variables equation of


{ x+y=3¿{2x−z=−1¿ ¿ . The values of Dy
= .....
5 1 4

5. Given matrix of A =
( 1 −3 4
−4 4 0 ) . The minor entry M 23 is .....
−2 1 3

6. Given matrix
(3 0 0
2 2 4 )
. The cofactor entry C32 is .....
7. Two people are shopping in the supermarket. Ali has to pay Rp 2.700,00 for 3 units P
and 4 units Q. However, Budi has to pay Rp 3.600,00 for 6 units P and 2 units Q.
The matrix that satisfies the condition above is .....

8. The solution set of the following linear equation system


{3 y+x=7¿¿¿¿ is ( x, y ) . If
a
Dx = a and Dy = b, the value of b = .....
9.
C

x cm

A y cm B
Circumference of the triangle above is 56 cm. If x is 5 cm
To determine the value of x and y with invers method is .....
10. Three years ago Harun’s age is 8 times Ryan’s age. Twelve years old later, Harun’s age
is 3 times Ryan’s age. If Harun symbolize with H, the matrix that satisfy the condition
above is .....

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