2) Complete the following activity to solve simultaneous equations 3x + 2y = 6 and 2x + 4y = 12 by
Cramer's rule
132
D=
12 4
=
D-
6 2
12 4
D =
13 6
12 12
у
-> (x, y)= is the solution of the given simultaneous equation. .
3) Como
Answers
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Answer:
D=
∣
∣
∣
∣
∣
∣
3
2
2
4
∣
∣
∣
∣
∣
∣
=12−4=8
D
x
=
∣
∣
∣
∣
∣
∣
6
12
2
4
∣
∣
∣
∣
∣
∣
=24−24=0
D
y
=
∣
∣
∣
∣
∣
∣
3
2
6
12
∣
∣
∣
∣
∣
∣
=36−12=24
x=
D
D
x
=
8
0
=0
y=
D
D
y
=
8
24
=3
Therefore (x,y) = (0,3)
Step-by-step explanation:
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