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꼉(sh)W(xu)A֪Rc(din)w{Y(ji)

rg2025-03-05 15:20:13 ѩ Y(ji) ҪͶ
  • P(gun)]

꼉(sh)W(xu)A֪Rc(din)w{Y(ji)

ƽƽČW(xu)(x)Ҍ֪Rc(din)(yng)ԓİ֪Rc(din)Ҳ鿼ԇr漰֪RҲǴVķ֧ˎҸЧČW(xu)(x)Сľ꼉(sh)W(xu)A֪Rc(din)w{Y(ji)Hһɡ

꼉(sh)W(xu)A֪Rc(din)w{Y(ji)

꼉(sh)W(xu)A֪Rc(din)w{Y(ji) 1

һc(din)cAλP(gun)ϵ䔵(sh)

Aİ돽rc(din)Aĵľxdtc(din)ڈA<===>d=rc(din)ڈA(ni)<===>dd>r

AČQԣ

1cAP(gun)ĸ

ͬĈAAͬ돽ȵăɂAͬĈA

ݵȈA܉ȫغϵăɂAȈA돽ȵăɂAǵȈA

޵ȻͬAȈAУ܉غϵĻȻ

߈AĽǣc(din)ڈAĵĽǽAĽǡ

ľࣺĈAĵҵľxľ

2ASQDֱڵֱČQSAПo(sh)lQS

3ֱҵֱƽ@lңƽăɗl

Փƽңֱֱֱƽăɗl

f(j)cՓ֪һAһlֱf߂䣺

^A

ڴֱ

ƽ

ƽă(yu)

ƽӻ

傀lеκ΃ɂlƳY(ji)Փ

4ͬAȈAȵĈAĽȡľ

ՓͬAȈAɂAĽǡɗlɗlһɗlҵľһMô(yng)Mքe

AܽǺ͈AĽǵP(gun)ϵ

1AܽǵĶxc(din)ڈA҃߅cAཻĽAܽǡ

2AܽǶһlĈAܽǵĈAĽǵһ롣

Փ1ͬȻA֮ܽͬAȈAȈAܽҲȣ

Փ2AֱĈAֱܽ90ĈAֱܽ

_Aėl

1_һA횵ľ߂ɂl

(jng)^һc(din)o(sh)A(jng)^c(din)Ҳo(sh)AA@c(din)εĴֱƽ־

2ͬһֱϵc(din)_һA

3εӈAεAă(ni)εĸ

1εӈA͈Aă(ni)Σ(jng)^һc(din)ĈA@εӈA@νAă(ni)

2εģӈAĈAĽ@εġ

3εĵ|(zh)ĵc(din)ľx

꼉(sh)W(xu)A֪Rc(din)w{Y(ji) 2

һAĶx

1Զc(din)AģL돽c(din)MɵĈD

2ͬһƽ(ni)һc(din)ľxȵc(din)MɵĈD

AĸԪ

1돽Aһc(din)cAĵB

2ֱBӈAσc(din)н(jng)^Aĵľ

3ңBӈAσc(din)(ֱҲ)

4Aσc(din)֮gAҲǻ

(1)ӻСڰAܵĻ

(2)(yu)ڰAܵĻ

5AĽǣԈAĞc(din)돽ǵ߅

6Aܽǣc(din)ڈAAܽǵă߅

7ľࣺAĵҵĴεL

AĻ|(zh)

1AČQ

(1)ASQDΣČQSֱڵֱ

(2)AČQDČQLjA

(3)AD(zhun)QD

2

(1)ֱҵֱƽ@lƽ@lăɗl

(2)Փ

ƽ(ֱ)ֱֱƽăɗl

ƽֱֱֻƽֻҡ

3AĽǵĶȔ(sh)ĶȔ(sh)AܽǵĶȔ(sh)Ȕ(sh)һ

(1)ͬĈAܽ

(2)ֱĈAֱܽ;AܽǞֱǣֱ

4ͬAȈAɗlɗlɂAܽɂAĽɗlľ匦ֻҪһČҲքe

5Aƽоgăɗl

6O(sh)Oİ돽rOP=d

7(1)^c(din)ĈAĈAһڃc(din)gBεд

(2)ͬһֱϵc(din)_һAA߅дĽc(din)c(din)ľx

(ֱεľб߅c(din))

8ֱcAλP(gun)ϵdʾAĵֱľxrʾAİ돽

ֱcAЃɂc(din)ֱcAཻ;ֱcAֻһc(din)ֱcA;

ֱcA]нc(din)ֱcAx

9ƽֱ(bio)ϵA(x1y1)B(x2y2)

tAB=(x1+x2,y1+y2)

10Aож

(1)d=rrֱLjAо

c(din)_ֱC돽

(2)(jng)^돽c돽ֱֱLjAо

c(din)_B돽Cֱ

11Aо|(zh)(a(b))

(1)(jng)^c(din)ֱһֱо

(2)(jng)^c(din)Ҵֱ@lоֱһ(jng)^Aġ

12оL

(1)оLĈAһc(din)Aăɗlоc(din)c@c(din)֮gBεL@c(din)AоL

(2)оL

PAPBСOc(din)AB

PA=PB1=2

13(ni)ЈAP(gun)Ӌ(j)㡣

(1)΃(ni)ЈAĈA(ni)ƽ־Ľc(din)߅ľxȡ

(2)DABCAB=5BC=6AC=7OСABC߅c(din)DEF

ADBECFL

O(sh)AD=xtAD=AF=xBD=BE=5-xCE=CF=7-x.

ɵ÷̣5-x+7-x=6x=3

(3)ABCC=90㣬AC=bBC=aAB=c

(ni)ЈAİ돽r

CODCECD=CE=r

AD=AF=b-rBE=BF=a-r

b-r+a-r=c

r=(b+a-c)/2

(4)SABC=abc/4r

14(a(b))

(1)нǣǵc(din)ڈAϣǵһ߅LjAоһ߅LjAҡ

DBCСOc(din)BABABCнǣABC=D

(2)ཻҶ

AăɗlABcCDཻc(din)PtPAPB=PCPD

(3)и

DPAСOc(din)APBCǡOĸtPA2=PBPC

(4)ՓDPABPCDǡOĸtPAPB=PCPD

15AcAλP(gun)ϵ

(1)xd>r1+r2c(din)0;

Уd=r1+r2c(din)1;

ཻr1-r2

(ni)Уd=r1-r2c(din)1;

(ni)0d

(2)|(zh)

ཻɈABľֱƽֹ

ЃɈABľؽ(jng)^c(din)

16AP(gun)Ӌ(j)㡣

(1)LLʾAĽnʾAİ돽Rʾ

L=n(AĽ)x(A)xr(돽)/180

(2)εeSʾ

S=lr/2

(3)AFĂ(c)չ_D

rAİ돽aĸL

εĈAĽǦ=l/r

S(c)=arSȫ=ar+r2

п(sh)W(xu)A֪Rc(din)Y(ji)

1.ͬһֱϵc(din)_һA

2.ֱҵֱƽ@lҲƽăɗl

Փ1ƽ(ֱ)ֱֱƽăɗl

ҵĴֱƽ־(jng)^Aƽăɗl

ƽһlֱֱƽƽһl

Փ2AăɗlƽAĻ

3.AԈAĞ錦QĵČQD

4.AǶc(din)ľxڶLc(din)ļ

5.Aă(ni)ԿLjAĵľxСڰ돽c(din)ļ

6.AⲿԿLjAĵľxڰ돽c(din)ļ

7.ͬAȈAİ돽

8.c(din)ľxڶLc(din)܉EԶc(din)AģL돽ĈA

9.ͬAȈAУȵĈAĽĻҵľ

10.ՓͬAȈAɂAĽǡɗlɗlһҵľһMô(yng)M

11Aă(ni)߅εČǻa(b)κһǶă(ni)

12.ֱL͡Oཻd

ֱL͡Od=r

ֱL͡Oxdr

13.ож(jng)^돽˲Ҵֱ@l돽ֱLjAо

14.о|(zh)Aоֱڽ(jng)^c(din)İ돽

15.Փ1(jng)^AҴֱоֱؽ(jng)^c(din)

16.Փ2(jng)^c(din)Ҵֱоֱؽ(jng)^A

17.оLĈAһc(din)AăɗlооLAĺ@һc(din)BƽփɗlоĊA

18.A߅εăɽM߅ĺǵڃ(ni)

19.ɂAУôc(din)һBľ

20.كɈAxdR+r

ڃɈAУd=R+r

.ɈAཻR-rr)

.ɈA(ni)Уd=R-r(Rr)

݃ɈA(ni)dr)

21.ཻɈABľֱƽփɈAĹ

22.шAֳn(n3):

BY(ji)c(din)õĶ߅@Aă(ni)n߅

ƽ(jng)^c(din)AооĽc(din)c(din)Ķ߅@An߅

23.κ߅ζһӈAһ(ni)ЈA@ɂAͬĈA

24.n߅εÿ(ni)Ƕ(n-2)180/n

25.n߅εİ돽߅ľn߅ηֳ2nȫȵֱ

26.n߅εeSn=pnrn/2pʾn߅εL

27.e3a/4aʾ߅L

28.һc(din)܇kn߅εĽ@Щǵĺ͑(yng)飻360k(n-2)180/n=360㻯(n-2)(k-2)=4

29.LӋ(j)㹫ʽL=nأR/180

30.eʽS=nأR^2/360=LR/2

31.(ni)оL=d-(R-r)⹫оL=d-(R+r)

32.һlĈAܽǵĈAĽǵһ

33.Փ1ͬȻĈAܽ;ͬAȈAȵĈAܽĻҲ

34.Փ2A(ֱ)ĈAֱܽ;90ĈAֱܽ

꼉(sh)W(xu)A֪Rc(din)w{Y(ji) 3

һһκ(sh)Dy=kx+b

һκ(sh)ĈDkbؓ(f)Q

kһƲ(sh)

kСһࣨp(sh)

b^ԭc(din)

b㽻c(din)ָDcySĽc(din)ϷָxSϷ

bС㽻c(din)ָDcySĽc(din)·ָxS·

D(jng)^0bͣb/k0@c(din)c(din)ͿԛQһlֱң0bySb/k0xS

bĔ(sh)ֵһκ(sh)ySϵĽؾࣨǾxؓ(f)֣֮

ʽMĽ⼯

1Eȥĸӑ(yng)̖ȥ̖(xing)ϲͬ(xing)ϵ(sh)1

2һԪһβʽMrʽĽ⼯Ȼ󰴲ʽM⼯ķNӳҎ(gu)ɣʽMĽ⼯ʽM⼯Ĵ_a

AĽ⼯ǽ⼯ССȡС

BĽ⼯ǽ⼯ȡ

CĽ⼯ǽ⼯ССȡg

DĽ⼯ǿռ⼯ССğo

עڵĆ}



1Ȳ(sh)Ҳؓ(f)(sh)ǽ(sh)ؓ(f)(sh)֮gĔ(sh)Ȼ(sh)(sh)ż(sh)

ADZʾ෴xĻ(zhn)(sh)

Bжؓ(f)(sh)Ľ

Cһзؓ(f)(sh)һСֵ0һз(sh)һֵ0

2\(yn)|(zh)

A˷(sh)΃綼

BκβĔ(sh)㲻(sh)0]е(sh)

C˷κΔ(sh)ab=0abһ0

Dӷab෴(sh)a+b=0

Ep^Сãab=0a=bab0abab0a

3ڽƔ(sh)(dng)0Ч(sh)֕rʾͬľ_ʡ

ʽֽֽⷽ

ȡʽȻùʽʮˣֽMֽⷨУٲ(xing)(xing)ԇһԇM(jn)еÿһ(xing)ʽʽٷֹֽ

1ṫʽ

^(xing)ʽĽY(ji)(gu)c(din)_(xing)ʽĹʽ(dng)(xing)ʽ(xing)Ĺʽһ(xing)ʽrO(sh)oԪķD(zhun)(xing)ʽҲ԰@(xing)ʽʽһwֱȡʽ(dng)(xing)ʽ(xing)Ĺʽ[ĕrҪѶ(xing)ʽM(jn)m(dng)?sh)׃׃ֱ̖ɴ_(xing)ʽĹʽ

2ʽ

a2b2=a+bab

a2+2ab+b2=a+b2

a22ab+b2=ab2߀ͼʽ

3ʮ

\(yn)ùʽx2+p+qx+pq=x+qx+pM(jn)ʽֽ

(sh)(xing)ֽɝMҪăɂ(sh)eĶ·Lԇһ㲽E

г(sh)(xing)ֽɃɂ(sh)ķeNr

ڇLԇеăɂ(sh)ĺǡõһ(xing)ϵ(sh)

4ֽMֽⷨ

(xing)ʽam+an+bm+bn@(xing)Л]йʽԲȡʽٿֲùʽʮ˷ֽʽֳɃɽMam+anͣbm+bn@ɽMܷքeȡʽķքeֽʽ

ԭʽ=am+an+bm+bn

=am+n+bm+n

ṫʽm+n

am+n+bm+n

=m+na+b

Ҋһ(xing)ʽ(xing)ֽMȡʽһʽͬô@(xing)ʽͿ÷ֽMֽֽⷨʽ

꼉(sh)W(xu)A֪Rc(din)w{Y(ji) 4

1oֱAL:c=d

2o돽AL:c=2r

3oֱAİ돽:r=d2

4oLAİ돽:r=c¦С2

5o돽Aֱ:d=2r

6oLAֱ:d=c¦

7oֱAL:c=r+d

8o돽AL:c=r+2r

9o돽Ae:s=r2

10oֱAe:s=(d2)2

11oLAe:s=(c¦С2)2

12o돽Ae:s=r22

13oֱAe:s=(d2)22

14oAСA돽Ah(hun)e:s=(R2-r2)

15oAСA돽Ah(hun)e:s=R2-r2

꼉(sh)W(xu)A֪Rc(din)w{Y(ji)P(gun)£

Д(sh)W(xu)A֪Rc(din)w{Y(ji)06-16

Д(sh)W(xu)A֪Rc(din)Y(ji)06-07

Д(sh)W(xu)A֪Rc(din)Y(ji)10-17

СĔ(sh)W(xu)֪Rc(din)Y(ji)w{09-03

(sh)W(xu)߶֪Rc(din)Y(ji)w{03-19

Д(sh)W(xu)֪Rc(din)Y(ji)w{09-09

(sh)W(xu)֪Rc(din)w{Y(ji)05-08

СW(xu)(sh)W(xu)֪Rc(din)Y(ji)w{12-09

Д(sh)W(xu)֪Rc(din)Y(ji)w{06-08

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