Matematika

Pertanyaan

diket f(x)=1-x2 g(x)=2x+3
(fog)x?
(gof)x?

1 Jawaban

  • f(x)=1-x²
    g(x)=2x+3

    (fog)(x)=1-(2x+3)²=1-(4x²+12x+9)=-4x²-12x-8

    (gof)(x)=2(1-x²)+3=2-2x²+3=-2x²+5

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