Chiziqli tenglamalar sistemasini Кramer, Gauss usullar bilan yechish

Mustaqil yechish uchun misollar.

Quyidagi determinantlarni hisoblang.

1) , 2) , 3) ,
4) tenglamani yeching.
5) , 6) , 7) ,

8) , 9) , 10) ,

11) , 12) 13)

14) 15)

№ 1-20 misollarda chiziqli tenglamalar sistemasini Кramer usuli bilan yeching.
1. 2x+3y-7z=8 2. 4x-5y+z=3 3. 7x+2y-4z=-6
3x-y+5z=1 x-6y+3z=-4 4x-2y-z=-4
x-4y+6z=-7 3x+2y-z=8 -x+y+z=3
4. 5x-6y+5z=-7 5. -3x+5y+6z=9 6. -4x+8y+7z=-1
3x-2y+4z=0  5x-y-4z=-3  x+y-5z=-3
-2x+y-7z=-5 4x+3y-z=2 -2x-3y+5z=1

7. 7x+5y-3z=-4 8.  3x+4y+5z=-1 9. 3x-5y+z=0

3x-6y-5z=-1 -7x+2y-6z=3 -2x+2y-3z=1
-2x+3y+4z=3  x-y+z=-2 2x-2y+4z=-2

10.2x+7y+z=0 11. 7x-y+z=-3 12. 5x+2y-3z=10

-2x+2y-3z=1  -4x-2y-z=-3  -x-4y+z=-2
2x-2y+4z=-2  x+2y+3z=1  - -2x-y-6z=4

13.  4x+2y-z=0 14. x-3y+5z=10 15. 15 3x-2y+5z=3

 2x-y+z=5  -x-y+z=0  x+y-3z=4
 -3x+3y+2z=-2  2x+5y-3z=-4  -x-2y+3z=-3
16 . 7x+5y-3z=0 17. 4x-y+5z=3 18.  3x+2y-z=-6
8x+y+3z=-3  7x-3y-4z=5 -x-3y+2z=3
 2x+4y-4z=2  x-y+5z=-6  4x+y+z=-5

19  x+y-2z=-6 20. 2x+3y+4z=0

2x+4y-z=-1  x+y+5z=-4
 3x+5y-2z=-4  -x-2y+3z=-6
Quyidagi chiziqli tenglamalar sistemalarini Gauss usuli bilan yeching
1) 2)
3) 4)