内容正文:
!"☆#$%
;<#$○%&’()*+,-./
& ’ ( )
*Ⅰ+(,-) .36/)
0、,-)(12).124),654)789:3,;<,=>0;?f
g9,54),hi3/,,k、j,V,89KwlT03{|}/,.
36/)
1.-6’:#(( )
A.-16 B.
1
6 C.-6 D.6
2.ºY¬’[á(0.00000078L,â#J0.00000078TUVW#X
Y,Z( )
A.7.8×10-7 B.7.8×10-8 C.0.78×10-7 D.78×10-8
3.t®m�°±’(( )
A.2x2-x2=1 B.x6÷x3=x2
C.4x·x4=4x5 D.(3xy2)2=6x2y4
4.�çu§Âìú}5uª5³@25®L,}5u5³30®Lú�çu
5³40®LªT@1Âì,�cu’ç4Nf¡Zª¬.}5u’ç
4NfZx®L/ì,I®nOZ( )
A.30x-1=
40
x-25 B.
30
x-1=
40
x+25
C.30x+1=
40
x-25 D.
30
x+1=
40
x+25
5.â��°n/@°Ü‘wc8¯’$d(\�[���¯�,$K��
)*+,’-./,e:-./’12*(( )
Ñ5Ò*
Ñ6Ò*6.)*+,,AB(⊙O’[á,[\DA]⊙O‘übdA,DOa⊙Ob
dC,()BC,Þ∠ABC=21°,e∠ADC’f#Z( )
A.46° B.47° C.48° D.49°
7.��ªÂ{’�Õ¿ú�àÕ¿’2�ª180°,e:ªÂ{’yÕ\’
8#(( )
A.12 B.13 C.14 D.15
8.)*+,,! Rt△ABC $,∠BCA=90°,∠BAC=30°,BC=2,â Rt
△ABCßA d ìáâã90°$K Rt△ADE,e BC °*’Ü‘
Z( )
A.π2 B.
( 槡2- 3)π C. 槡2- 32 π D.π
Ñ8Ò*
Ñ9Ò*9.)*+,,O{ABCD’ÂJZ6,∠ABC=120°,M (BC Â’���
�^d,P(yÕ\AC Ý’çd,ëPB+PM ’D%Âì,PM ’J
(( )
A.槡72 B.
槡2 7
3 C.
槡3 5
5 D.
槡26
4
10.)*+,,!�Â{ABCD$,DC∥AB,AD=5,CD=3,sinA=sinB
=13.
çdP}A dvf,@ÒÂABædB xNmç,?ìçdQ}
dA vf,@ÒÂAD-DC-CBxNmç,Nf4Z§F1�éêJ
f.ë�$��çdKj�dì,0¦?ì}ymç.dPmçt(F)
ì,△APQ’Ü‘ZS,eS�bt’ä#*å(( )
11.yb"#a,b,¾c3� min{a,b},�pcZ:a≥bì,min{a,b}=
b;ëa<bì,min{a,b}=a,b) min{2,-1}=-1,Þ�bx’ä
#y=min{2x-1,-x+3},e:ä#’%&DZ( )
A.23 B.1 C.
4
3 D.
5
3
12.)*+,,°²Â{ABCDE ’ÂJZ2,()AC,
AD,BE,BE ^_]AC ¿AD ‘abdF,G,()
DF.uvt®�0:①∠FDG=18°;②FG 槡=3- 5;③
(S�Â{CDEF)2 槡=9+2 5;④DF2-DG2 槡=7-2 5.�$
�0°±’�#(( )
A.1� B.2� C.3� D.4�
*Ⅱ+(E,-) .84/)
F、GH)(12).54),54)Ghi4/,.20/)
13.-( )12
-3
-2cos45°+(3.14-π)0 槡+ 8= .
14.?±’%Ü·JZ2π3
,×\JZ2,dP(×\OA ’$d,��¬²
(�³F)Îd P ß?±�Ü�·EKdP,e¬²’%µJf
Z .
15.[\y=kx+b]2Z\y=-6x
abA(-3,m),B(n,-6)cd.â[\y
=kx+bæÝçè8�éêJfÈ,]2Z\abD,E cd,eS△ADE
= .
16.+ãä#y=ax2+bx+c(a<0)*å]xx’adA,B’ide^_
Z-3,1,]yxabdC,t���0:
①16a-4b+c<0;②ÞP(-5,y1),Q 52
,y( )2 (ä#*åÝ’cd,e
y1>y2;③a=-13c
;④Þ△ABC(���Õ{,eb=- 槡2 73 .
�$°±’� .(ºâ�0°±’¡�I®ØÝ)
17.)*+,,!�{ABCD $,BE⊥AC^_aAC,AD
bdF,E,ÞAD=1,AB=CF,eAE= .
I、JK)(12).74),.64/,JKCM8NC9
OPQR、SRTUV~WY