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СW(xu)ؿ}

r(sh)g2024-08-06 21:10:30 С ҪͶ
  • P(gun)]

СW(xu)ؿ}ͅR

г̆(wn)}СԇСW(xu)ĴِĴ}֮һ(ӋՓ׺г)w}׃γ10N}иصĽ}

СW(xu)ؿ}ͅR

СW(xu)ؿ} ƪ1

һһ׷(wn)}

һ˻߶˕r(sh)(ͬr(sh)r(sh))(ͬ)(ͬ)ĕr(sh)g;xȗlϳFг̆(wn)}ڱِдFsռ80%h쾚ؘʽⷨs=vtYϘ˜ʾ(xin)ή(hu)D()ֻõ׷ĻʽɽQڽ}ĕr(sh)һF^r׃r(sh)YԼ(hu)ĈDֶȥr

s׷(wn)}

(1)׷(wn)}һ׷(wn)}һ(g)\(dng)һ҂׷(wn)}}˼·ȫһֻsc(din)P(gun)Iǘ˜ʮ(hu)Dܷߵ\(dng)B(ti)

(2)׷(wn)}ɂ(g)һ·ͬr(sh)ͬػͬr(sh)ط׷׷Q(chng)v͆(wn)}֞˜(֪ɵؾx̓ٶn׷c(din)ضc(din)ľxҎr(sh)gȵ׷Δ)ͼچ(wn)}(Ҋ(jin)֪ٶһ(g)ں߶صʼc(din)r(sh)׷ĴΔ)

˜ͽ̶ⷨ܏·(hu )ܷһ_(ki)ʼλ׷r(sh)gķxʹΔ׵ö۾(xin)ʾDֻܴЂ(g)JRo(w)wóǷǿԇr(sh)gм(hu)˜ʳߴD

һõĕr(sh)gʽ(ֻeҏăɶͬr(sh)l(f)rͬһ˳l(f)rҊ(jin)Բ٘)

γr(sh)gtγ=s/(v+v)

γ׷r(sh)gtγ׷=s/(v-v)

nr(sh)gtn= tγ(2n-1)

m׷r(sh)gtm= tγ׷(2m-1)

޶r(sh)gȵΔNΔ=[ (tn+ tγ)/2 tγ]

޶r(sh)gȵ׷ΔM׷Δ=[ (tm+ tγ׷)/2 tγ׷]

ע[]ȡ̖

֮xȡ׻ҁ(li)оP(gun)·̵P(gun)ϵ漰چ(wn)}ҪעҪ\(dng)e

(jin)}҃܇(ch)ͬr(sh)Aسl(f)300ǧ׵ABɵ֮g֪܇(ch)ٶÿСr(sh)30ǧ܇(ch)ٶÿСr(sh)20ǧ 

(wn)(1)ڶӭֽ(jng)^(gu)L(chng)r(sh)g׷?(2)r(sh)xc(din)ǧ?(3)50Сr(sh)҃܇(ch)ӭٴ?

܇(ch)(wn)}

c(din)o(w)漰܇(ch)L(chng)С}ͷ֞飺

1܇(ch)^(gu)()һ(g)L(chng)ٶһ(g)L(chng)](mi)ٶ

ⷨ܇(ch)܇(ch)L(chng)+()L(chng)(·) =܇(ch)ٶȡͨ^(gu)ĕr(sh)g;

2܇(ch)+(sh)(늾(xin)U)һ(g)L(chng)ٶһ(g)](mi)L(chng)](mi)ٶ

ⷨ܇(ch)܇(ch)L(chng)(·)=܇(ch)ٶȡͨ^(gu)r(sh)g;

3܇(ch)+ˣһ(g)L(chng)ٶһ(g)](mi)L(chng)ٶ

(1)܇(ch)+ӭߵˣஔ(wn)}

ⷨ܇(ch)܇(ch)L(chng)(·) =(܇(ch)ٶ+˵ٶ)ӭe^(gu)ĕr(sh)g;

(2)܇(ch)+ͬߵˣஔ׷(wn)}

ⷨ܇(ch)܇(ch)L(chng)(·) =(܇(ch)ٶ-˵ٶ) ׷ĕr(sh)g;

(3)܇(ch)+ڻ܇(ch)ϵˣ܇(ch)c˵׷(wn)}

ⷨ܇(ch)܇(ch)L(chng)(·) =(܇(ch)ٶȡ˵ٶ) ӭe^(gu)ĕr(sh)g(׷ĕr(sh)g);

4܇(ch)+܇(ch)һ(g)L(chng)ٶһ(g)ҲL(chng)ٶ

(1)e܇(ch)(wn)}ஔ(wn)}

ⷨ܇(ch)܇(ch)L(chng)+܇(ch)܇(ch)L(chng)(·) =(܇(ch)ٶ+܇(ch)ٶ) e܇(ch)r(sh)g;

(2)܇(ch)(wn)}ஔ׷(wn)}

ⷨ܇(ch)܇(ch)L(chng)+܇(ch)܇(ch)L(chng)(·) =(܇(ch)ٶ-܇(ch)ٶ) e܇(ch)r(sh)g;

ڻ܇(ch)^(gu)܇(ch)܇(ch)׷Լ܇(ch)ͻ܇(ch)֮g׷ȵ@׷N(li)͵}Ŀڷ}Ŀĕr(sh)һýY(zh)D(li)M(jn)

ˮд(wn)}

ٶˮд(wn)}ҲͲyӛס1(g)ʽ

ˮ=oˮ+ˮٶͿ현ƌʽ

ˮ=oˮ-ˮٶ

oˮ=(ˮ+ˮ)2

ˮٶ=(ˮ-ˮ )2

ԽYՓ£

(1)׷ˮٶȌ׷ĕr(sh)g](mi)Ӱo(w)Փͬ߀ăɴٶȲɡ{đʹÞ

2)ˮƯٶ=ˮٶt1= t2(t1ﵽl(f)Fĕr(sh)gt2İl(f)Fʰĕr(sh)g)cˮПo(w)P(gun)˽YՓ(li)ĕr(sh)gʽdz׵ĽQˮ(wn)}䱾Ҳdzӛ

}һlм҃ɂ(g)a^״a^Ҵa^`50ǧ̎һҿʹһ؛քeļ҃ɴa^ͬr(sh)l(f)ɴoˮٶͬ ʹl(f)r(sh)һƷĴˮ10犺Ʒʹ5ǧʹ20ǧ׺^׷sƷ׷ϕr(sh)ǡú؛ˮٶ

gl(f)܇(ch)(wn)}

g@yC^(gu)̌ٽ}](mi)Ўһ3(g)ʽһ㆖(wn)}ӭж

(1)ڰ܇(ch)(wn)}ûʽQٵĽֱⷨӮ(hu)r(sh)g-xDٮ(hu)Ľ澀(xin)Ҫ󔵽c(din)(g)

}ABǹ܇(ch)ăɂ(g)܇(ch)վAվBվ·ÿ8c(din)11c(din)ABվÿ30ͬr(sh)l(f)һv܇(ch)֪AվBվ γҪ105BվAվγҪ80(wn)830900Aվl(f)܇(ch)˾CքeܿvBվ_(ki)(li)܇(ch)?

(2)ڰ܇(ch)“(lin)3(g)ʽʹ

܇(ch)g=(܇(ch)ٶ+ٶ)¼r(sh)gg

܇(ch)g=(܇(ch)ٶ-ٶ)׷¼r(sh)gg

܇(ch)g=܇(ch)ٶȡ܇(ch)l(f)܇(ch)r(sh)gg

12ϲ

܇(ch)g=ٶȡr(sh)gg

֞2(g)С}ͣ

1һgl(f)܇(ch)(wn)}3(g)ʽѸ;

2_Ŀĵغ׷Ĺ܇(ch)v˜ʷǣ(hu)D-Mܶ3(g)ʹʽ-Ysȫ=vt-Yֲ(sh)(wn)}

}СT܇(ch)ȥСҾە(hu )·ע⵽ÿ9犾һv܇(ch)ĺ󷽳ԽССT܇(ch)·܇(ch)ֻ܇(ch)ȥС@r(sh)С ְl(f)F܇(ch)Ҳÿ9犳Խһv܇(ch)֪܇(ch)ٶСT܇(ch)ٶȵ5@3N܇(ch)v^(gu)жքô܇(ch)վÿٷ l(f)һv܇(ch)?

ƽٶȆ(wn)}

׵}ʽҪӛ·=ƽٶȡr(sh)gs=vt(xi)ıҪֱӌ(xi)ʽⲢҎγг̆(wn)}ĽyһQ

h(hun)ܵ(wn)}

һ(li)Ժyȵ}֞顰ͬһ·ͬ·挍(sh)ܷ񿴵С} 漰چ(wn)}׺λÆ(wn)}(}м©Nλÿ)ʽ(wn)}(ᘌܷ񿴵(wn)}(wn)ܷھ(xin)εĹս̎)

犱톖(wn)}

ǭh(hun)Ά(wn)}ضP(gun)ϵʽv= 12vr(sh)

(1)Yӛr(sh)ÿ1/120.5;ÿ16r(sh)ᘺͷᘡ롱칲غ11ֱ(xin)11ֱǹ22(ʲôλҪԼñ(hu)DY)

(2)}˼··̲˼·

()=(r(sh))+()

x=x/12+(_(ki)ʼr(sh)r(sh)ᘵĸ+Kֹr(sh)^(gu)r(sh)ᘵĸ)

ǣ6x=x/2+(_(ki)ʼr(sh)r(sh)ᘵĽǶ+Kֹr(sh)^(gu)r(sh)ᘵĽǶ)

ԽQ󲿷֕r(sh)ᘆ(wn)}}غֱֱ(xin)Ƕăɂ(g)gһ(g)r(sh)γɶٽǶ

}9c(din)23֕r(sh)r(sh)ᘺͷᘵĊAǶٶ?@һr(sh)_(ki)ʼ(jng)^(gu)ٷr(sh)ᘺͷᘵһδֱ?

(3)犆(wn)}õĽQѽ(jng)г̆(wn)}׃ɱ(wn)}ıʽ

Ԅ(dng)݆(wn)}

ȻûP(gun)ϵʽsݼ=(vˡv)tϻ½Q@·̆λȫǡΨһҪעtϻҪʾɌ(sh)Hߵļ/˵ٶ

}̈(chng)Ԅ(dng)Ԅɂ(g)ķ߄(dng)ŮкYŮ40_к80_кλr(sh)gߵķݼŮ2tԓoֹr(sh)ɿķݼжټ?

ʮʮ·چ(wn)}

ڲͬϵг̆(wn)}](mi)Ľ}ֻҪό(sh)(sh)шD(hu)ͨ^(gu)׺ηͿԽQλL(chng)ε·ϵг̆(wn)}

ʮһУ܇(ch)(wn)}

@һ(li)}У܇(ch)У܇(ch)(li)ؽ鲻ಽк܇(ch)Kͬr(sh)_Ŀĵ(_Ŀĵص̕r(sh)gҪC)4NС}ͣУ܇(ch)ٶ((li)زͬ)༉ٶ(ͬ಻ͬ)Ƿ׃(li)

(1)܇(ch)ٲ׃-ٲ׃-2(g)(Ҋ(jin))

(2)܇(ch)ٲ׃-ٲ׃-(g)

(3)܇(ch)ٲ׃-׃-2(g)

(4)܇(ch)׃-ٲ׃-2(g)

˜ʽⷨ(hu)D-3(g)ʽӣ

1r(sh)g=һ(g)܇(ch)ĕr(sh)g+@(g)鲽еĕr(sh)g;

2܇(ch)ߵĿ·;

3һ(g)鲽еĕr(sh)g=܇(ch)ͬr(sh)l(f) (li)ĕr(sh)g

(hu )õׂ(g)·̶εıֵٸ

(jin)}װcҰW(xu)ͬr(sh)ČW(xu)Уl(f)ȥ15ǧĹ@҃ɰIJٶȶÿСr(sh)4ǧW(xu)Уһv܇(ch)ٶÿСr(sh)48ǧ @v܇(ch)ǡһ(g)ČW(xu)ʹɰW(xu)̕r(sh)gȵ_@ôװW(xu)cҰW(xu)ҪеľxǶǧ?

ʮC(li)

(jin)}ABҪɳĮ̽UÿɳĮ̎20ǧ֪ÿԔyһ (g)24ʳˮʌʳ;һ(g)hɳĮǧ(Ҫ˷سl(f)c(din))?@(li)(wn)}䌍(sh)ܑ}(li)h ӛYՓԱ㿼ԇÿ˿Ԏtʳhߵĕr(sh)gT

(1)(li)(Cһ(g)ߵh˶Ҫ(zh)؁(li))

1ˣ;ʳT=2/3t;;ʳT=3/4t

2ˣ

(2)ɳĮ(li)(Cһ(g)˴^(gu)ɳĮ؁(li)˶Ҫ(zh)؁(li))n(ɳĮ)1˴ɳĮ(li)

1;ʳT[2n/(n+1)]tTǴɳĮҪ씵

2;ʳT=(1+1/3+1/5+1/7++1/(2n-1))t

СW(xu)ؿ} ƪ2

1Ͳ(wn)} ֪ɔĺc@ɂ(g)

֪ɔ102@ɂ(g)

E

ͼϲԽԽ;2Ǵ;

͜pȥԽpԽС;2С

Et=(10+2)2=6С=(10-2)2=4

2Ȇ(wn)}

הҔ12Ҽ:=74ɔ

E

ҵı

ӌ(sh)Hĸ

һԸԵıɔ

һ12(7-4)=4

Լה飺4X7=28Ҕ飺4X4=16

3g(wn)}

E

g׃ͬr(sh)Ӝp

qһ׃Ҳ׃

ץס@c(din)һж(jin)

1С܊8 qְֽ34qְֵgС܊3?

q(hu )׃Ěqc(din)34-8=26Ȼ(hu )׃֪DȆ(wn)}

26(3-1)=13ְֵg13X3=39qС܊g13X1=13qԑԓ5

213qܵܽ9q܂zqĺ40qr(sh)˸ԓǶٚq?

q(hu )׃Ěq13-9=4Ҳ(hu )׃q40q4DͲ(wn)}

tĚq(40+4)2=22ܵܵĚq(40-4)2=18Դ9

4ͱȆ(wn)} ֪w󲿷

ұ͞27::=2:3:4ұ

E

Ҫ˺ּԭt

ĸȔԼ

ͳԱԓõ

ĸȔĸ飺2+3+4=9;

Լtұռ͵ıքe293949;

ͳԱtמ27X29=6Ҟ27X39=927X49=12

5uͬ\(wn)}

uͬ\^36 _120uÔ

E

OȫuOȫ

ˎֻ_ˎֻ?

_IJuÔ

Õr(sh)OȫutӔ=(120-36X2)(4-2)=24

ur(sh)Oȫtu =(4X36-120)(4-2)=12

6 ·̆(wn)}

(1)(wn)}

҃ˏ120ǧ׵ăɵ׵ٶȞ40ǧ/Сr(sh)ҵٶȞ20ǧ/Сr(sh)ٕr(sh)g?

E

һ·ȫ^(gu)

ٶȺͰѕr(sh)g

һ·ȫ^(gu)^(gu)·̺ǡǃɵصľx120ǧ

ٶȺͰѕr(sh)g҃˵ĿٶȞ˵ٶ֮40+20=60(ǧ/Сr(sh))ĕr(sh)g͞12060=2(Сr(sh))

(2)׷(wn)}

ܶˏļȥ㲽ٶȞ3ǧ/Сr(sh)2Сr(sh)ܵT܇(ch)l(f)ٶ6ǧ/Сr(sh)וr(sh)׷?

E

B(nio)ҪwS׷

ߵ·ٶȲr(sh)g

ߵ·̣3X2=6(ǧ)

ٶȵIJ6-3=3(ǧ/Сr(sh))

׷ϵĕr(sh)g63=2(Сr(sh))

7 Ȇ(wn)}

(1)ˮϡ

20ǧ˝Ȟ15%ˮˮǧ˺׃?yu)?0%?

E

ˮˮ

ˮpˮǼˮ

ˮԭ(li)Ǟ飺20X15%=3(ǧ)

ˮ3ǧ10%‘жˮ310%=30(ǧ)

ˮpˮˮpȥԭ(li)ˮ30-20=10(ǧ)

(2)ǝ⻯

20ǧ˝Ȟ15%ˮǶǧ˺׃?yu)?0%?

E

ˮˮˮ

ˮpˮ}

ˮԭ(li)ˮ飺20X(1-15%)=17(ǧ)

ˮˮ17ǧˮ20%‘жˮ17(1-20%)=21.25(ǧ)

ˮpˮˮٜpȥԭ(li)ˮ21.25-20=1.25(ǧ)

8̆(wn)}

һ헹׆Ϊ4҆Ϊ6ͬr(sh)2҆Ϊ?

E

̿O11ԕr(sh)gǹЧ

Ϊr(sh)ЧԼһRr(sh)ЧDZ˵Чʺ

1pȥѽ(jng)ıǛ](mi)](mi)ijԹЧʾǽY

[1-(16+14)X2](16)=1()

9ֲ(sh)(wn)}

E

ֲ(sh)ٿҪ(wn)·?

ֱĜpȥ1AǽY

1һlL(chng)120׵R·ֲ(sh)g4ֲ(sh)ٿ?

·ֱtֲ(sh)1204-1=29()

2һlL(chng)120׵ĈAλ߅ֲ(sh)g4ֲ(sh)ٿ?

·LjAtֲ(sh)1204=30()

10ӯ̝(wn)}

E

ȫӯȫ̝ĜpȥС;һӯһ̝ӯ̝һ

ԷIJYǷĖ|

1Сѷÿ10(g)9(g);ÿ8(g)7(g)жСѶ?

һӯһ̝tʽ飺(9+7)(10-8)=8()Ӟ8X10-9=71((g))

2ʿӏÿ45l(f)t680l(f);ÿ50l(f)t200l(f)ʿӏ?

ȫӯ(wn)}tĜpȥСʽ飺(680-200)(50-45)=96()ӏ96X50+200=5000(l(f))

3W(xu)l(f)(sh)ÿ10t90;ÿ8 t8ٌW(xu)ٕ(sh)?

ȫ̝(wn)}tĜpȥСʽ飺(90-8)(10-8)=41()(sh)41X10-90=320()

11(wn)}

r(sh)犬Fڱʾĕr(sh)g18c(din)D1990Ȧǎc(din)?

E

(N-1)(g)С1(N-1)

׃r(sh)ҪֻҪ

DһȦ1Сr(sh)D24ȦǕr(sh)D1ȦҲǕr(sh)ᘻصԭλ19802422ஔڷǰD22(g)ȦǰD22(g)Ȧஔڕr(sh)ǰ22(g)Сr(sh)r(sh)ǰ22Сr(sh)Ҳஔ24-22=2(g)Сr(sh)ஔڕr(sh)2Сr(sh)r(sh)ஔ18-2=16(c(din))

12ţԲ݆(wn)}

E

ÿţÿijԲOǷݔ1A^BijԲǎ?M^NijԲǎ?ĜpȥСԶߌ씵IJֵYDzݵL(chng)ԭеIJ˷

ʽA^BijԲpȥBԲݵL(chng)δ֪Բţ֞ɂ(g)֣һСȳ²(g)Dzݵı;еIJʣţ͌Ҫ.씵֪

(g)(chng)ϲL(chng)һһӿ27^ţ6԰Ѳݳ;23^ţ9Ҳ԰Ѳݳ(wn)21^Ѳݳ

ÿţÿijԲO1t27^ţ6ijԲ27X6=16223^ţ9ijԲ23X9=207;

ĜpȥС207-162=45;ߌ씵IJֵ9-6=3()tݵL(chng)453=15(ţ/);

ԭеIJ˷ơ

ʽA^BijԲpȥBԲݵL(chng)

ԭеIJ=27X6-6X15=72(ţ/)

δ֪Բţ֞ɂ(g)֣

һСȳ²(g)Dzݵı@f(shu)Ҫ21^ţ֞ɲһ15^ţIJ;ʣµ21-15=6ȥԭеIJ씵飺

ԭеIJ·ʣµţ=726=12()

СW(xu)ؿ}͡P(gun)£

2017СW(xu)ؿ}02-23

2016СW(xu)}c}˼·02-22

2017СW(xu)֪RR01-23

СW(xu)ؿyc(din)Ԕ01-12

vСZ(y)ĵıؿ}ͷ02-23

СZ(y)ij֪RR01-27

P(gun)СZ(y)ĔW(xu)Z(y)֪Rc(din)02-25

2017СW(xu)֪R01-27

2017пW(xu)S}}02-22

СZ(y)(zhun)Ӗ07-12

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