( ) () 0 n g x f x
x a
( ) ( ) 0n g x h x
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nf x h x g x h x
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g x h x
( ) ( ) ( ) ( ) ( )
n
f x h x A x g x h x
( ) ( ) ( ) ( ) ( )n ng x h x B x g x h x
( ) ( ) ( ) ( ) ( ) ( ) 0 ( ) ( ) ( ) ( ) 1 0n n nA x B x g x h x g x h x g x h x A x B x
( ) ( ) 1A x B x
( ) ( ) 1A x B x
( ) ( )
( )
( ) ( )n
f x h x
A x
g x h x
4.
( )g x
()f x
( )h x
( )A x
( )B x ( ) ( )n g x h x
n
“𝑺𝒉𝒊𝒇𝒕” “𝑺𝑶𝑳𝑽𝑬”
“𝑺𝒐𝒍𝒗𝒆 𝒇𝒐𝒓 𝑿”