]:
ƽrI(y)нoW(xu)Գɹw(yn)
ƽrI(y)нoW(xu)һЩ(sh)`ԵI(y),(sh)W(xu)̌W(xu)Ҫֿ]W(xu)İl(f)չc(din)Y(ji)(jng)(yn)֪RO(sh)Ӌ(j)ȤxI(y)ʹиęC(j)܇ϤЌW(xu)(x)(sh)W(xu)┵(sh)W(xu).ˣ횰є(sh)W(xu)͌W(xu)(sh)H(lin)ϵ̌W(xu)N.ʹw(sh)W(xu)߅ܵ(sh)W(xu)Ȥζã(sh)W(xu)a(chn)HиС.磺̌W(xu)һfжrW(xu)һfһfĺһfһԪŵweW(xu)@ôϤиܔ(sh)c(lin)ϵa(chn)^m(x)W(xu)(x)ںĽ̌W(xu)ЌW(xu)F(xin)˺ܴdȤJ(rn)RһfжԺҪW(xu)\(yn)@Щ(sh)еM(jn)кεĹӋ(j)ͽ.@ӽ̌W(xu)W(xu)w(sh)W(xu)đ(yng)Ãrֵ͔(sh)W(xu)B(yng)W(xu)\(yn)Ô(sh)W(xu)֪RQ(sh)H}B(yng)ˌW(xu)Ą(chung)RW(xu)dȤȻЧ.
ώĻش:
3(sh)W(xu)п}(f)(x)_Ŀ(bio)ҪF(xin)ڔ(sh)W(xu)п}ץA(ch)^B˼룬ͻ(qing){(dio)(yng)(chung)¡ָ(do)˼벻׃ԇ}ڌW(xu)l(f)չ锵(sh)W(xu)A(ch)֪Rܺͻ˼뷽\(yn)˼Sg^Լ\(yn)Ô(sh)W(xu)֪RͽQΌ(sh)H}ͬW(xu)ӆW(xu)(x)Ŀ(bio)Ӌ(j)֮ǰҪJ(rn)x(sh)W(xu)пԇf(f)(x)ָϣ_пҪпԇyO(sh)úwҪ(֪Rc(din)ķֲ)һϵy(tng)J(rn)Rr{(dio)(f)(x)ķֹƫoù_(d)°빦Ч
W(wng)ѵĻش:
(dng)ȻXеĕr҂̎ҪԼ(dng)ʲô}ܽQ@ӕW(xu)ʧȥQ}ĺ̈́иهoһc(din)g?ni)}ļԼl(f)W(xu)(x)dȤ
W(wng)ѵĻش:
l(f)չW(xu)W(xu)(x)dȤB(yng)W(xu)W(xu)(x)nrg͌W(xu)Մl(f)W(xu)W(xu)(x)eOھ?q)WW(xu)(x)Wc(din)W(xu)P(yng)ĄW(xu)ҵW(xu)(x)뼚(x)ÌW(xu)ȡͬD(zhun)W(xu)ͬԭQ}˷ϵKa(b)ϲĹn˼ͨۙo(do)ЦҜ(zhn)Ŀ(bio)CĎP(gun)ϵa(b)ĎP(gun)ϵno(do)I(y)НBa(b)
ڼҵСţĻش:
gCķһcY(ji)Փ෴ļO(sh)}Ȼ@O(sh)l(f)ͨ^_(do)ìĶ෴ļO(sh)Ķ϶ԭ}_һNìCԷ֞ևCìC
ώĻش:
һW(xu)ƵČW(xu)(x)Ҏ(gu)ҪM(fi)ٵĕrgո֪RҪÿƌW(xu)ČW(xu)(x)^֮W(xu)ƵČW(xu)(x)ԣ(sh)W(xu)W(xu)(x)Ҏ(gu)(sh)W(xu)}ĿӋ(j)䔵(sh)(j)һ(sh)W(xu)ՓԾo(sh)}Ŀǔ(sh)W(xu)Փ֪Rs(sh)W(xu)̎Hؓ(f)W(xu)M(jn)֪Rڵ߀Ҫ(do)W(xu)ЧČW(xu)(x)
Tomͽܿ˵Ļش:
(sh)W(xu)̌W(xu)
ώĻش:
ĄW(xu)eOᆖnÚ
ώĻش:
ڡJ(rn)RһnO(sh)Ӌ(j)̌W(xu)rP(gun)IĵطMˌW(xu)СMW(xu)(x)һ̎˽W(xu)֪RյrҪW(xu)Լ֪֪RСM(ni) W(xu)xJ(rn)Ѓrֵ֪RȫͬW(xu)ڶ̎ڌW(xu)lС11˸5СM(ni)ČW(xu)ţ݆}Ķ(do)W(xu)(jng)^rgJ(rn)R1Ȧ60֪RW(xu)چ}龳ф(chung)O(sh)}Q}ͻƽ̌W(xu)һc(din)rgλēQ
ĵĻش:
(sh)W(xu)W(xu)(x)
ώĻش:
磬̎vͬӶࡱĸrȌ(du)СM(jn)аκӱِ龰 DչF(xin)ڌW(xu)ǰȻ(do)W(xu)^DĮ^нͬӶࡱĸڌW(xu)ϲg ӱِ֮ΑِԌW(xu)(x)dȤvȶ()(yng)}rðڼӼ 127̌W(xu)\(yn)ý̌W(xu)qM(jn)NʾNʾfñȺöñȰ١ñȺ ö١ñȰٶ١ȸ֮ҪW(xu)(j)ͬӶࡰ١ٶ١fDʾ Լ?jn)[D@ӣW(xu)W(xu)(x)eOԺܸH^õ@һ(yng)}P(gun)ͽⷨ ˌW(xu)(x)(yng)}dȤ͐ۺ
ώĻش:
ڔ(sh)W(xu)W(xu)(x)^УҪһѵď(f)(x)RuB(yng)õď(f)(x)(x)TĶW(xu)W(xu)(x)(sh)W(xu)(f)(x)(yng)һ˼ԌW(xu)(x)^Ҫ˼W(xu)(x)֪RЛ]_(d)nҪij̶;Ҫ˼W(xu)(x)漰Щ(sh)W(xu)˼뷽@Щ(sh)W(xu)˼뷽\(yn)õ\(yn)^ʲôc(din)
Tomͽܿ˵Ļش:
2(sh)W(xu)nÄ(chung)½̌W(xu)ע،W(xu)˼SB(yng)Ӗ(xn)(chung)˼S
ڼҵСţĻش:
˷ֹ@NF(xin)İl(f),҂ƽrČW(xu)(x)(yn)˼SҎ(gu)t,(yn)_ĽQ}˼Sʽ,оe`,(yn),IJ,_l(f)Լć(yn)ĺͬF(xin)(sh)˼S(x)T
ĵĻش:
4 폊(qing){(dio)ָ
ڼҵСţĻش:
һһؼl(xing)ȥڴ߅ώɢȻǰһ꼉СW(xu)ǘжYՄxСČW(xu)ķN
ԬώĻش:
O(sh)Ӌ(j)}龳(qing)W(xu)W(xu)(x)(sh)W(xu)dȤ
ĵĻش:
(do)W(xu)ҕķe
(sh)W(xu)һY(ji)(gu)ԌW(xu)һ¹(ji)ģչMvĶN¹(ji)@Y(ji)(gu)(f)s˔(sh)W(xu)ČW(xu)(x)һѭuM(jn)^ҪW(xu)עճW(xu)(x)еķeۣ֪Rc(din)ķeۺͽ}ķeۡڴҪv}ķe(sh)W(xu)ĵĽY(ji)(gu)wϵmff׃xڣֻҪڿY(ji)һЩҊĽ}|ͨ`\(yn)õNͬ}ȥ
磬ڽ̌W(xu)κ(sh)c(bio)ϵ@һ¹(ji)rώҪõIJHHǰѻA(ch)ՓoW(xu)Ҫ(do)W(xu)Y(ji)}Y(ji)ˡy=ax^2+bx+caQDε_ڷa>0r_a<0r_¡aĽ^ֵQD_ڵĴС^ֵaԽ_ԽС^ֵaԽ_ԽСҎ(gu)Ժ}^Еӵđ(yng)}ЧȻ̎ڽ̌W(xu)^һҪ(do)W(xu)עؽ}ʽĿY(ji)ceۡ
ώĻش:
c(din)c(din)
ώĻش:
пF(xin)xҊƪ߳F(xin)ڸ(bo)(dng)еĸˮ(zhn)ɢĵȶNƽr҂|@ӵ£ݱϤL(fng)M߲ͬ˽F(xin)ČĸNҎ(gu)ɣĶڴxй(ji)ʡrgM(jn)ҵ