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