Question

dados f(X)=X+2 e g(X)=2x-1,calcule a)f(g(X)) b) g(f(X)) c) f(X)=0 d) g(0)

Answer 1

Boa tarde

a) f(g(x))= (2x-1)+2= 2x+1

b) g(f(x))= 2(x+2)-1= 2x+4-1= 2x+3

c)f(x)= 0
x+2=0
x= -3

d) g(0)= 2(0)-1= -1