гĔ(sh)W֪Rc(sh)c֪RY
Z]κΆ}oFǘ|˵Єe^oFǘӼǮa(chn)гɹ˼룬ȻҲ]κĸoFǘҪUСĸД(sh)W֪Rcϣ!gӭxHP֪RՈPעCNFLAWW(wng)!
1.(sh)Ķx
OABǷǿյĔ(sh)ijN_ČPϵfʹڼAеһ(sh)x,ڼBжΨһ_Ĕ(sh)f(x)ôͷQf:A->BļABһ(sh)ӛy=f(x),x∈A
2.(sh).x
(sh)Ķx֞Ȼx͌HxɷNoĺ(sh)Ľʽ(עx)䶨xָʹԓʽx׃ȡֵ(QȻx)(sh)ЌH}_ģ@r(j)׃ČHx_(sh)ֵȫw(sh)ֵMɵļ
3.ʽ
(sh)ĽʽһNNr
(1)(j)H}(sh)Pϵʽ@Nrm׃(j)(sh)WP֪Rҳ(sh)Pϵʽ
(2)Еrwнo(sh)(sh)Ľʽôϵ(sh)
(3)QԪʽf[h(x)]=g(x)f(x)Ć}Oh(x)=tнx,g(x)MГQԪ(sh)ʽǰǣҪN(sh)|˽Ϥ
Ŀǰ҂ѽ(jng)W˳(sh)(sh)ָ(sh)cָ(sh)(sh) (sh)c(sh)(sh) 纯(sh) Ǻ(sh) (sh) κ(sh)ԼώN(sh)Ӝp˳ߏͺϵһЩ^sĺ(sh)@N(sh)ҲdzȺ(sh)
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