Diketahui (foh)(x)=4-2x h(x)=2x+1 Tentukan f(x)!

hx = 2x+1
   y = 2x+1
 2x = y-1
   x = y-1 / 2
 h⁻ˣ = x-1 / 2


f (hx) = 4-2x
    fx  = 4 - 2 h⁻ˣ
         = 4 - 2(x-1 / 2)
         = 4 - (x-1)
         = -x+5 atau
         = 5-x

[tex]Diketahui : \\ (foh)(x)=4-2x \\ h(x)=2x+1 \\ Ditanya : f(x) ? \\ Jawab : \\ (foh)(x)=4-2x \\ f(h(x))=4-2x \\ f(2x+1)=4-2x \\ f(x)= \frac{4-2x}{2x+1} \\ \\ [/tex]