Fungsi f(x) = x -1 dang(x) = x² + 2x +1,Tentukan3. (gof)(x)a. (fog (x)​

Jawaban:

gof(×)= (x-1)^2 + 2(x-1) +1

fog(x)=x^2 + 2x

f(x) = x -1 dan

g(x) = x² + 2x +1,Tentukan

3. (gof)(x) = g(x-1) = (x-1)²+2(x-1)+1

x²-2x+1+2x-2+1 = x²

a.fog (x) = f(x² + 2x +1) = x² + 2x +1-1 = x² + 2x