mohon di isi dengan caranya no 6

f (x) = ( x + 2 )/ x dan g(x) = 2x /(x - 1)
fog (2) = f { g (2) }
= f { (2.2/(2-1) }
= f ( 4/1)
= f (4)
= ( 4 + 2 )/ (2)
= 6/2
= 3