Matematika

Pertanyaan

1. Dik=g(x)=4x+1
f(x)=5x-2
Dit=(gof)(x)
2. Dik=g(x)=2x-1
f(x)=4x-1/2x+1
Dit=(gof)(x)
3. Dik=g(x)=x+4
f(x)=x²+2x-7
Dit=(gof)(x)
4. Dik=g(x)=3x+2/4x-1
f(x)=5x-2/4x+1
Dit=(gof)(x)

2 Jawaban

  • no 1 2×7+5(×)2
    no2 4×-5×8(×)7
    no3 ×2(×)6
    no 4 1+(×7)×5+(7)×-5
  • 1) g(x) = 4x + 1
    f (x) = 5x - 2
    gof (x) = ... ?
    Jawab :
    g(f(x)) = 4x + 1 (5x - 2)
    *masukkan f(x) ke g(x)
    = 4(5x - 2) + 1
    = 20x - 8 + 1
    = 20x - 7

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