F(x) =2x g(x) =3x+5 tentukan fog(2) gof(-1)..?​

Jawaban:

(f o g)(2)= 22

(g o f)(-1)= -1

Penjelasan dengan langkah-langkah:

(f o g)(x)= f(g(x))

= f(3x+5)

= 2(3x+5)

= 6x+10

Masukkan x= 2:

= 6(2)+10

= 12+10

= 22

(g o f)(x)

= g(f(x))

= g(2x)

= 3(2x)+5

= 6x+5

Masukkan x= -1

6(-1)+5

= -6+5

= -1