Determine Whether (F  G)(x) = X and Whether (G $f ( x ) = \frac { 1 } { x } , g ( x ) = x$

Multiple Choice

Determine whether (f  g) (x) = x and whether (g  f) (x) = x.
- $f ( x ) = \frac { 1 } { x } , g ( x ) = x$

A) No, no
B) No, yes
C) Yes, yes
D) Yes, no