Question

sendo f(x)=x-3 e g(x)= -3x+4 determine: f(f (1))+ g(f(3))

Answer 1

f(1)=2  f(f(1))=1 g(f(x))=-3x+11 g(f(3))=-9+11=2

f(f(1))+g(f(3)) 1+2=3