Question

dada la funcion f(x)=x2-1 g(x)=x+3
A) f o g (x)=
B) g o f (x)=
C) f o f (x)=
D) g o g (x)=
E) [ (g o f) o g (x)=

Answer 1

A) f o g (x)=  f(g(x)=  (x+3)²+3
B) g o f (x)= g( f (x)) =  x²-1+3 = x²+2
C) f o f (x)= f(f (x)) = (x²-1)² -1
D) g o g (x)= g(g (x)) = (x+3)+3 = x+6
E) [ (g o f) o g (x)= (g o f) ((gx)) = (x+3)²+2


saludos chucho..