Question

considere a função f (x)=x2 -2x+3 e g (x)=x -1, determine: A) f (g (x) )= B)g (f (x) )=

Answer 1

 f (x)=x2 -2x+3 e g (x)=x -1, determine:

A) f (g (x) )=  (x-1)2 - 2(x-1)+3 ==> x2 - 2x + 1 - 2x + 2 ==> x2 -2x+3 


B)g (f (x) )= x2 -2x+3  - 1 ==> x2 - 2x + 2