Mohon bantuannya ya Kak<3!

By Posted on

<img src="https://id-static.z-dn.net/files/d7d/6c87d7730397dda327925d9d323d4ef5.jpg" alt="Mohon bantuannya ya Kak

Mohon bantuannya ya Kak<3!

Jawab:

fungsi

f(x)=  (x + 1)/(x – 5)

fog(x) = 2x + 3

f{g(x)}=  2x + 3

sf dfrac{g(x)+ 1}{g(x) - 5} = 2x + 3

g(x)=  y

(2x + 3)(y-  5) =  y + 1

2 xy – 10 x + 3y – 15 =  y + 1

2xy + 3y – y =  10x + 15 + 1

2xy + 2y = 10x + 16

y(2x + 2) = (10x +16)

sf y = dfrac{10x+ 16}{2x+2}=dfrac{2(5x+8)}{2(x+1)}

sf g(x) = dfrac{5x+8}{x+1}