Question

Diket: f(x):akar x-3,g(x):x/x+1,h(x):x2+1
tentukan:
a.(Fo(goh)) (x),
b.((fog)oh) (x)

Answer 1

A) f o g o h (x) 
= f {g(x^2+1)}= f{(x²+1 / x²+2)}
= √{(x²+1 / x²+2) - 3
.
b) (fog) o h(x)= fogoh(x) = √{(x²+1 / x²+2) - 3