Matematika

Pertanyaan

x+y+z=1 2x-y+3z=2 2x-4-z =2

2 Jawaban

  • jawaban terlampir yaa ;)
    Gambar lampiran jawaban Jongdaexp
  • Materi : SPLTV
    Kelas : X SMA

    x + y + z = 1 ........... 1)
    2x - y + 3z = 2 ........ 2)
    2x - 4y - z = 2 .......... 3)

    2x - y + 3z = 2
    2x - 4y - z = 2
    ----------------------- -
    3y + 4z = 0 

    x + y + z = 1 .......... ×2
    2x -y + 3z = 2 ......... ×1
    -------------------------------
    2x + 2y + 2z = 2
    2x - y + 3z = 2
    --------------------------- -
    -y - z = 0

    3y + 4z = 0  .... ×1
    -y - z = 0 ......... ×3
    ----------------------------- 
    3y + 4z = 0
    -3y - 3z =0
    ---------------------------- +
    z = 0

    -y - z = 0
    -y - 0 = 0
    -y = 0
    y = 0

    x + y + z = 1
    x + 0 + 0 = 1
    x = 1

    Hp = {1 , 0 , 0 }


Pertanyaan Lainnya