合成関数 演習1

f (x) = x² +1 , g (x) = x+3 ,

h (x) =√(2x-7)

(g ○ f)(x) 

(f ○ g)(x)

(h ○ (g ○ f) )(x)

f (x) = log₂x , g (x) = x² ,

h (x) =√(x+1)

(g ○ f)(x) 

(g ○ h)(x)

(h ○ g)(x) 

( (h ○ g) ○ f) )(x)