Question

PAGE 11 4x + 3y + 5z = 10 : 3x + 2y + z = 0 5x+6y+7z=0 Cramers rule​

Answer 1

Answer:

in this role will get a 2462

Answer 2

Step-by-step explanation:

1. 4x+3y+5z=10
2. 3x+2y+z=0
3. 5x+6y+7z=0

where A=4 3 5. x[x]. D=[10

3 2 1. y. 0

• 5 6 7. z. 0

The Matrix Equation is Ax=D

∆=| 4 3 5|

3 2 1

5 6 7

Det= 4(14-6)-3(21-5)+5(18-10)

4(8)-3(16)+5(8)

32-48+40

Det=24

∆1= | 10 3 5|

0 2 1

0 6 7

Det= 10(14-6)-3(7-7)+5(6-14)

10(8)-3(0)+5(-8)

80-0-40

Det=40

∆2 =|4 10 5|

3. 0. 1

5. 0. 7

Det=4(0-0)-10(21-5)+5(0-0)

Det=-160

∆3= |4 3 10

3 2 0

5 6 0

Det=4(0-0)-3(0-0)+10(12-10)

0-0+20

Det=20

X=∆1/∆=0/24=0

Y=∆2/∆=-160/24=6

Z=∆3/∆=20/24.

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