Math, asked by wwwskmuskan123, 3 months ago

The solution of a system of equations
7x+5y - 13z+4=0
9x+ 2y +11z= 37
3x - y + z =2 is​

Answers

Answered by azadsinghramgarh6
3

Step-by-step explanation:

X=B

7

9

3

5

2

−1

−13

11

1

x

y

z

=

−4

37

2

∣A∣=

7

9

3

5

2

−1

−13

11

1

=406

AdjA=

13

24

−15

8

46

22

81

−194

−31

⇒A

−1

=

406

1

13

24

−15

8

46

22

81

−194

−31

x

y

z

=

406

1

13

24

−15

8

46

22

81

−194

−31

−4

37

2

x

y

z

=

1

3

2

∴x+y+z=6

Answered by joshijyoti348
1

Answer:

AX=B

7

9

3

5

2

−1

−13

11

1

x

y

z

=

−4

37

2

∣A∣=

7

9

3

5

2

−1

−13

11

1

=406

AdjA=

13

24

−15

8

46

22

81

−194

−31

⇒A

−1

=

406

1

13

24

−15

8

46

22

81

−194

−31

x

y

z

=

406

1

13

24

−15

8

46

22

81

−194

−31

−4

37

2

x

y

z

=

1

3

2

∴x+y+z=6

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