Question

se f(x)=1/x+1 e g (x)2x+1,determine a composta de g com f.

Answer 1

f(x) = 1/x + 1   e g(x) = 2 x + 1

fog(x) = 2 . ( 1/x + 1) + 1 ------->  (2/x + 1) + 1 ---------> fog(x) = 2 + x + 1/x + 1
 
  fog(x) = x + 3/x + 1