Matematika

Pertanyaan

Gaisss pleaseee gw sangat sangat membtuhkqn jwban
Gaisss pleaseee gw sangat sangat membtuhkqn jwban

1 Jawaban

  • g. f(g(x))= [(4x²+1)²-6]= 16x^4+8x+1-6= 16x^4+8x-5
    h. f(g(x))= x²+x-12= (g(x))-3= x²+x-12= (g(x))=x²+x-12+3= (g(x))=x²+x-9
    i.( f o g o h)(x)= 5
    # (g o h)(x)=
    g(h(x))= [√(1-2x)]²-2= 1-2x-2= -2x-1
    # (f o g o h)(x) =
    f(g(h(x)))= √[(-2x-1)+1]= √(-2x)
    # (f o g o h)(x) =5
    √(-2x)= 5
    -2x = 5²
    -2x = 25
    x = 25/-2


    e.
    -2+7x
    _____
    7 - 2x

    7x - 2
    _____
    -2x+7

    -7x-2
    _____
    -2x-7

    f
    y. = ^3√(5+2x)
    y^3 = [^3√(5+2x)]^3
    y^3 = 5+2x
    y^3-5= 2x
    (y^3-5)/2= x
    x= (y^3-5)/2

    f^-1(y)= (y^3-5)/2
    f^-1(x)= (x^3-5)/2

    kalo salah maaf, ya.

    good luck
    :-)