2023-2024

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1.￡nffl,AD,CE#?J*AABCf?*8flfc￥^.^AB=AC,ZCAD=20°,WJZACEf?Otê()

A

A.20°B.35°C.40°D.70°

2.-#MW132Tü,?iU9?rf?Me,wraio%,WJ&ftMtfJ?

A.1067?B.105TCC.118TCD.108Tü

3.TTü^W,()

A.2x(x-1)=2x2—2xB.x2-2x+3=x(x-2)+3

C.(x+y)2=x2+2xy+y2D.-x2+2x=-x(x-2)

4.T^PW^,()

A.^5x-6=7,U!|5x=7-6

B.+=l,IJJlJ2(x-1)+3(x+1)=1

32

3

C.-3x=5,WJx=-—

D.Sx-3=4x+2,WJSx-4x=2+3

0^1i

5.-—-1^g?iàfiü-13,swwaw?x=2,()

33

A.x=0B.x=-1C.x=2D.x=-2

6.M,+C&&&&MBi?fàMC:CB=1:2,()

4.3/CB

A.2cmB.5cmC.6cmD.8cm

7.-9f??i().

A.-?B.IC.9D.-9

99

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A.?ifflB.?ifflc.D.?

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10.fclffl:A.,O>B?-^<^±,jaZAOC=ZEOD=90o,WJS+51^W?^<()Xt

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11.MW5am+2b"+5^a2m+,b2n+3l^^,Mm=,n=

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13.B&Z?-^Z/7￡￡,_az?=46°24?°.

14.BM&ABm?a3Wfc,WamBflm4fiWmcD,m^aCDlW?____MX.

15.jnlly-3|+(2x-4)2=0,

16.2018f?;fêO[<____,

H,?T?ü^?(XX??8/h?,4^72#)

17.(84?M,O,D,E=^?|^-?^±,ZAOB=90°.

(1)ffl+ZAODmi'A>,ZAOC?ùX??

(2)MOBY4J-ZCOE,ZAOC=35°,IWi+^ftiZBODfl?

18.(8ft)ftjffl,ZABP%ACBP^&,ZCBD=32>BP^ftZABD.?frZABP&J&&1.

19.(8#)&S,OAfifcfrl&jMltf?jfc15°,OB50°,OD&OB

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DXXX&GXXXi'k

AJ?--------------------*BlfcO2^12*jAKk--------------------?BJlU034-134

2019-121J101120:002019<|2JJ10H21:00

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iw^ii-na?IW^II-f*r?<4-

(1)+ta&m(?WM’’)?

(2)200km/h,300km/h,MtOJ??,

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(3)a(2)100*m?

1

21.(8^)$nffl,a^A,BMHkfflSi6^,^5eêe^AMHi^t?rttCiè,|B|WZiABMtH^filtrttCife.

(2)TO±Z^j$A?5ftiSTi￡S?'FHZ?M<Wf?12MijièC±fejH?LBPja0,MA?B,C

22.(io#)^aX.fàhb*.^?mM?a^W+M

arn-wh*.

(2)a=30,/F20,

23.(10#)B&:OB.OC.OM.ON^AOD^m^.

(D$nS1,^ZA(M)=156°,OM^ftZAOB,ON^ftZBOD,ZBOD=96°,!ü!|Z.MONA?

(2)M2,%AAOD=m°,ANOC=23°,OM^ZAOB,ON^^ZBOD,^.ZCOMni

(3)#nffl3,^ZAOD=156°,ZBOC=22°,ZAOB=3i?°,OM^ftZAOC,ON^ZBOD,%ZBOC&.ZAOD

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17:oo—19:oo1.667ü/^-M

23:oo—oo:oo2.607ü/^S

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2

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2

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2

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2

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32

.'.MBW^?^c

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3

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fàfà:D

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[W1-1&3,Hl]J?fW5￡T￡:2x-l=x+a-l,JEx=2ft

à^r?ajWS^gBPRj^W^f??W

[W1fêh#;2x-l=x+a-l,

?Cx=2^àSyb^,M:3=2+a-l,

Mfê:a=2,

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33

ft:2x-l=x+2-3,

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A.

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2

[W1V^^ncm^gABW+^M,

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o06=DOV7-o081=0037'■

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[WJ’.W5am+lb"+5±jalm+1bln+3<|ê)^,

m+2-2m+1

n+5-2n+3

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13.4336'-

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VZcz=46°24',

.-.z/?=90-4624'=89°60'-46°24'=4336'.

4336'.

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14,1

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1.

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15,1

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16,-2018-31

[W1A?:20182018,

-3^-3,1,

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WM,?O?-

=,^72#)

17,(1)ZAOE,ZBOC;(2)125°

r^wi(i)

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^BPTOWZBOD

[W1(1)ffl+ZAODmM&￡ZAOE,ZAOCèü^?^ZBOC,

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(2)*.*ZAOC=35°,ZAOB=90°,

.'.ZBOC=ZAOB-ZAOC=90°-35°=55°,

’.’OB￥^ZCOE,

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18,61°

^ZABP=x,^JHl^B^HPnr.

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x=61°

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19,(1);(2)AAODOE,JüMW,ACOE=7.5°.

[#W1(1)è?OB50°^ZBOF??M^iBZFOCMM§PRi;

(2)?$g?jfcfclBZAOE?mtM??W^M￡^HdZAOCI$?,^??1^^MPRi.

[WMJM:(I)VOBaü^(R]>M4t50o,

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.’.ZAOB=40o+15°=55°,

VZAOC=ZAOB,

.'.ZAOC=55°,

.'.ZFOC=ZAOF+ZAOC=15°+55o=70°,

AOC70°;

(2)éMWZAOD=90°-15o+50°=125°,

ftZAODOE

VOE^ZAOD

AZAOE=-ZAOD=62.5°,

2

AZCOE=ZAOE-ZAOC=62.5°-55°=7.5°.

[￡?]

20,(1)ffiR),75|H|.(2)A,BffiifeZ?Hl^M^éOOkm.(3)?(2)lh100km.

[MW](1)+20:00±j21:

oo,

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(3)100kmW?ù#?14.

[WM](1)^M+MBBPRTOM?KM?5*AAMMljBilk,20:00^21:

00,

(2)&A,BWfeZtHjlftlO?^s,

m??ra#-￡--i=i?

200300

WWs=600,

A,BffiüLtlWI?^?g600km;

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(2)300t-200(t+1)=100,WWt=3;

(2)600+300=2,

BP?^M2/>BtpraiàBtfe,

?(2)IhitfMW?100km.

[?ffltl

21.(lWAHj^-/bBtJH^ia±^(2)A,CMifeffil?30^.

2;

[Wff](D^MAHj^t/b0t)S^ia±Z?,16t-4t=6,MA8BPW^W;

(2)W&Ma?Ta^fc//J<,Bcm?jx^*,RA?B,cmf?+a&ffiia.JjW^Z^jêaWB^BC

g,TMWWA82(16+a)-2(4+a)=X,W^8BPWWBCg,fM^A,

[#W](DWAtB^t/b^^iaAZ,,ms^itw

16t-4t=6,

2

(2)WAKM?TafMBt,BCHTOxf)K,mMicW

2(16+a)-2(4+a)=x,

Wx=24,

&BCaiOA24^X,

.\AC=AB+BC=6+24=30,

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22.(1)(2a+2b-4)(2)5043p^’X

MW:

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(2)è^anTW:Sw-Sw;%-Sig??ra=30,Z>=20ftàab-{2a+2b-4)i+MBPRi.

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(2)è^^RrW:SW=Sfcs?-Sis?=ob—{2a+2b—4),

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Sw=30x20-(2x30+2x20-4)=600-96=504.

W?jffl*R￡504￥#X

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WinJeWi4.

23.(1)78°:(2)-/77O-23°(3)è^=—j￡—Ht,ZAOMfflZDON

23;3

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(2)èftY^raWZBOM=-ZA