2018word

12336

13.00|3|

A1B5C1D5

23.00

ABCD

33.00y=x

Ax1Bx0Cx1Dx1

43.00

A0

B

C540

D346

53.002xa+1yx2yb1

ABC1D3

63.0013444556

A41B42C51D52

73.00ABCAB=2BC=4ABC=30BABBCD

A2B2C4D4

83.00ABCAB=ACADEDEBCACDAE=90AD=AEC+BAC=145EDC

A17.5B12.5C12D10

93.00xx2+2x+m2=0mm

A6B5C4D3

103.00

a3b3a2b2

Ax1y1Bx2y2y=x22x1x1x21y1y22

abcabbcac

A4B3C2D1

113.00l1y=x+1xyABl2y=kxk0l1CBOC=BCOk

ABCD2

123.00ABCDBDABCBAD=BDC=90EBCAEBDFBC=4CBD=30DF

ABCD

8324

133.00a3b=23ab=6ba

143.00

153.00211242

163.001=

173.00ABOCOCBADEBCBECED=40BEC=

183.00ABCDACEFBCEFABEACF3AE=2EBDFSAEF=1SADF

193.00ABCDOBEACEy=x0DOBBE

203.00RtACBACB=90AC=BCDABABCDCDC90CEDEDEACFAE

ACEBCD

BCD=25AED=65

DE2=2CFCA

AB=3AD=2BDAF=

660

218.0010060%40%100

/

/

90

88

84

92

x

90

88

86

1

287.6x

3

228.00ABCDADBCABC=90AB=ADBDEABBDE=15DE=4DC=2

1BE

2DEBC

2310.003240043930840

13

239004

2410.00RtACBACB=90AACABDBAAECECDFAFCBEFAB=ABCBF

1BCD=BEC

2BC=2BD=1CEsinABF

2512.00ABCDAB=3BC=5EAD

11BDOBDOEOE=DEAE

22BEECEEFECABFCFBEGBEABCBG

33ECHCDABCDEHDECD'DDNADNEHMAE=1

BED'MHCBE

2612.00y=x2+x2xABAByClACBC

1l

2x=mm0ElDODODACDE

3G01AGPBAP=BCOBAGP

2018

12336

13.00|3|

A1B5C1D5

=23=5

B

23.00

ABCD

2111222

2111222

C

33.00y=x

Ax1Bx0Cx1Dx1

00

x10x10

x1

D

1

20

3[:,,Z,X,X,K]

43.00

A0

B

C540

D346

A0

B

C540

D346

C

53.002xa+1yx2yb1

ABC1D3

ab

2xa+1yx2yb1

a+1=2b1=1

a=1b=2

=

A

63.0013444556

A41B42C51D52

134445564

=2

B

73.00ABCAB=2BC=4ABC=30BABBCD

A2B2C4D4

AAEBCEAB=2ABC=30AE=AB=141=2

AAEBCE

AB=2ABC=30

AE=AB=1

BC=4

41=2

A

83.00ABCAB=ACADEDEBCACDAE=90AD=AEC+BAC=145EDC

A17.5B12.5C12D10

AB=ACB=C2C+BAC=180C+BAC=145C=35DAE=90AD=AEAED=45EDC=AEDC

AB=AC

B=C

B+C+BAC=2C+BAC=180

C+BAC=145

C=35

DAE=90AD=AE

AED=45

EDC=AEDC=10

D

93.00xx2+2x+m2=0mm

A6B5C4D3

0m3mm

a=1b=2c=m2xx2+2x+m2=0

=b24ac=224m2=124m0

m3

m

m=23

2+3=5[:]

B

0

103.00

a3b3a2b2

Ax1y1Bx2y2y=x22x1x1x21y1y22

abcabbcac

A4B3C2D1

aba2b2y=x22x1y1y22abbcac

a3b3a2b2

Ax1y1Bx2y2y=x22x1x1x21y1y22

abcabbcac

C

113.00l1y=x+1xyABl2y=kxk0l1CBOC=BCOk

ABCD2

l1y=x+1A20B01AB==3CCDOADCDBOOD=AO=CD=BO=Cl2y=kxk=

l1y=x+1x=0y=1y=0x=2

A20B01

RtAOBAB==3

CCDOAD

BOC=BCO

CB=BO=1AC=2

CDBO

OD=AO=CD=BO=

C

Cl2y=kx

=k

k=

B

123.00ABCDBDABCBAD=BDC=90EBCAEBDFBC=4CBD=30DF

ABCD

30BDDE=BE=2BDE=ABDDEABAB=3

RtBDCBC=4DBC=30

BD=2

DE

BDC=90DBC

DE=BE=CEBC=2

DCB=30

BDE=DBC=30

BDABC

ABD=DBC

ABD=BDE

DEAB

DEFBAF

RtABDABD=30BD=2

AB=3

DF=BD=2=

D

30DE

8324

133.00a3b=23ab=6ba2

4a4b=82ab

+4a4b=8

ab=2

ba=2

2

143.004

2x+73x+1x4

xx8

x4

01234

4

153.00211242

42

2

1

1

2

2

2

2

4

1

2

1

2

1

2

1

2

2

4

2

2

12426

42=

=

163.001=

=

=

=

=

173.00ABOCOCBADEBCBECED=40BEC=115

OCDCOCOB

OC

DCOC

DCO=90

D=40

COB=D+DCO=130

130

360130=230[:]

BEC==115

115

DCO

183.00ABCDACEFBCEFABEACF3AE=2EBDFSAEF=1SADF

3AE=2EBAE=2aBE=3aEFBC=2=SAEF=1SADC=SABC====SADF=SADC[:Zxxk.Com]

3AE=2EB

AE=2aBE=3a

EFBC

AEFABC

=2=2=

SAEF=1[:Z,xx,k.Com]

SABC=

ABCD

SADC=SABC=

EFBC

===

==

SADF=SADC==

193.00ABCDOBEACEy=x0DOBBE3

y=x0DSODF=k=SAOB=2SODF=OABE=3OA=OB

y=x0D

SODF=k=

SAOB=2SODF=OABE=

OABE=3

ABCD

OA=OB

OBBE=3

3

k

203.00RtACBACB=90AC=BCDABABCDCDC90CEDEDEACFAE

ACEBCD

BCD=25AED=65

DE2=2CFCA

AB=3AD=2BDAF=

BCD=ACE

BDC=110AEC=110

CAE=CEFCEFCAECE2=CFAC

BC=AC=3BD=CE=CD=CF=

ACB=90

CD=CEDCE=90=ACB

BCD=ACE

BCDACE

BCDACE

ACB=90BC=AC

B=45

BCD=25

BDC=1804525=110

BCDACE

AEC=BDC=110

DCE=90CD=CE

CED=45

AED=AECCED=65

BCDACE

CAE=CBD=45=CEF

ECF=ACE

CEFCAE

CE2=CFAC

CDEDE2=2CE2=2CFAC

DDGBCG

AB=3

AC=BC=3

AD=2BD

BD=AB=

DG=BG=1

CG=BCBG=31=2

RtCDGCD==

BCDACE

CE=

CE2=CFAC

CF==

AF=ACCF=3=

BCDACE

660

218.0010060%40%100

/

/

90

88

84

92

x

90

88

86

1

287.6x

3

1

2

3

1=89

2x60%+9040%=87.6

x=86

x86

39060%+8840%=89.2

8460%+9240%=87.2

8860%+8640%=87.2

228.00ABCDADBCABC=90AB=ADBDEABBDE=15DE=4DC=2

1BE

2DEBC

1ADAE

2DFBCFABFDCF

1ABCDADBCABC=90

BAD=90

AB=AD

ABD=ADB=45

BDE=15

ADE=30

RtADEAE=DEsin30=2AD=DEcos30=6

AB=AD=6

BE=62

2DFBCFABFD

BF=AD=6DF=AB=6

RtDFCFC==4

BC=6+4

SDEBC=SDEB+SBCD=626+6+46=36+6

2310.003240043930840

13

239004

13x40.9x=4330x

2y=y4=

13x40.9x

=30

x=40

x=40

340

2y

40a=900

a=25

400.925=990

4990

12

2410.00RtACBACB=90AACABDBAAECECDFAFCBEFAB=ABCBF

1BCD=BEC

2BC=2BD=1CEsinABF

1

2BDCBCEBE=4DE=3CDCEAFMBACFNCAFNNCBNBF

1ACB=90

BCD+ACD=90

DEA

DCE=90

BEC+CDE=90

AD=AC

CDE=ACD

BCD=BEC

2BCD=BECEBC=EBC

BDCBCE

BC=2BD=1

BE=4EC=2CD

DE=BEBD=3

RtDCEDE2=CD2+CE2=9

CD=CE=

FFMABM

FAB=ABCFMA=ACB=90

AFMBAC

DE=3

AD=AF=AC=AB=

FM=

FFNBCN

FNC=90

FAB=ABC

FABC

FAC=ACB=90

FNCA

FN=AC=NC=AF=

BN=

RtFBNBF=

RtFBMsinABF=

2512.00ABCDAB=3BC=5EAD

11BDOBDOEOE=DEAE

22BEECEEFECABFCFBEGBEABCBG

33ECHCDABCDEHDECD'DDNADNEHMAE=1

BED'MHCBE

1BDOD=OB=OAODEADO

2AEFDCEBF=1CHGCBFBK=GK=

3EC=5D'C=1DH=CH=EMNEHDED'MECH

MD'H=NED'MD'H=ECB

11OAABCDCD=AB=3AD=BC=5BAD=90

RtABDBD=

OBD

OD=OB=OA=

OAD=ODA

OE=DE

EOD=ODE

EOD=ODE=OAD

ODEADO

DO2=DEDA

AE=x

DE=5x

2=55x

x=

AE=

22ABCD

BEABC

ABE=EBC=45

ADBC

AEB=EBC

ABE=AEB

AE=AB=3

AE=CD=3

EFEC

FEC=90

AEF+CED=90

A=90

AEF+AFE=90

CED=AFE

D=A=90

AEFDCE

AF=DE=2

BF=ABAF=1

GGKBCK

EBC=BGK=45

BK=GKABC=GKC=90

KCG=BCF

CHGCBF

BK=GK=y

CK=5y

y=

BK=GK=

RtGKBBG=

3ABCDD=90

AE=1AD=5

DE=4

DC=3

EC=5

ED'=ED=4D'H=DHED'H=D=90

D'C=1

D'H=DH=z

HC=3z

3z2=1+z2

z=

DH=CH=

D'NAD

AND'=D=90

D'NDC

EMNEHD

D'NDC

ED'M=ECH

MED'=HEC

ED'MECH

EHD'=EHDED'H=D=90

MD'H+ED'N=90

END'=90

ED'N+NED'=90

MD'H=NED'

D'NDC

EHD=D'MH

EHD'=D'MH

D'M=D'H

ADBC

NED'=ECB

MD'H=ECB

CE=CB=5

D'MHCBE

2612.00y=x2+x2xABAByClACBC

1l

2x=mm0ElDODODACDE

3G01AGPBAP=BCOBAGP

1ACl

2

3OAC=OCB

1y=x2+x2

y=0x1=1x2=4x=0y=2

y=x2+x2xABAByC

A40B10C02

lACly=kx+b

ly=

2EDxF1

1

AO=4OC=2AOC=90

AC=2

OD=

ODACOAOCOAD=CAO

AODACO

AD=

EFxADC=90

EFOC

ADFACO

AF=DF=

OF=4=

m=

m=y=2+2=

EF=

DE=EFFD=

3PBAP=BCOBAG

GMACMPNxN2

A40B10C02

OA=4OB=1OC=2

tanOAC=tanOCB=AC=2

OAC=OCB

BAP=BCOBAGGAM=OACBAG

BAP=GAM

G01AC=2OA=4

OG=1GC=1

AG=

GM=

AM===

tanGAM==

tanPAN=

Pnn2+n2

AN=4+nPN=n2+n2

n1=n2=4

n=n2+n2=

P

PBAP=BCOBAG

1