X z 1 y z 1 x y 4
- X z 1 y z 1 x y 4 solve by cramer's rule
- X 2 1 y z 1 x y 4
- X 1 y 4 y 1 z 1 z 1 x 7 3
- X y 1 2 y z 1 3 z x 1 4
- Iii)x+z = 1 y+z = 1 x+y = 4
- Solve using cramer's rule x z 1 y z 1 x y 4
- X y z 1 1 x 4 y 9 z
- X y z 1 2x 3y 4z 9 x y z =- 1
- Cho x y z 0 và 1 x 1 y 1 z 4
- Solve the simultaneous equations x y 4 x z 1 0 y z 1 0
- Cho x y z 1 tìm gtnn của 1 x 4 y 9 z