Matematika

Pertanyaan

tolong aku yah, pliss |x+5| ≤ |1-9x|

1 Jawaban

  • x+5 <= 1-9x
    x+9x <= 1-5
    10x <= -4
    x <= -4/10
    x <= -2/5
    dan
    x+5 >= -(1-9x)
    x+5 >= -1+9x
    x-9x >= -1-5
    -8x >= -6
    x >= -6/-8
    x >= 6/8
    x >= 3/8
    hp= { -2/5 >= x >= 3/8 }

Pertanyaan Lainnya