jika f(x)=3^2+x dan g(x)=5log(x-2) selanjutnya tengok foto

f (x) = 3^(2+x), g(x) = 5log (x -2), dan h(x) = sin (phi/4)x
(h o g o f) (1) = h o g { f(1) }
= h o g { 3^(2+1) }
= h o g ( 3^3)
= h o g (27)
= h { g (27) }
= h { 5log (27-2) }
= h (5log 25)
= h (2)
= sin (phi/4).2
= sin 1/2phi
= 1