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???2016??????????
???2016???????????
???2016?????????
????
????:??????150???????120??? ??????????????????
?????:????10??????3???30????????????????????????????.
1.?????.
?????????
2??1?-2 .0.5/3??????????? A.-2B.0 C.5/3 D.1
3.?????????x?1?0???.????
4???????????????
A.
5.???P(0?m)?y?????????M(-m?-m+1)? A.????B.???? C.????D.????
6.??.AB?CD,DE?CE,?1=34,??DCE???? A.34B.54C.66D.56
7. ??????????????1:4,????????? A.1:16 B.1:4C.1:6D.1:2
8. ??????????????????50???????800?????????????600???????????????????x???. ???????????????
A.
800600800600800600800600
???? B. C.D. x?50xx?50xxx?50xx?50
9.?x2?4x?4?0??3(x?2)2?6(x?1)(x?1)??? A.-6 B.6 C.18D.30
10.??,?ABC??????????A=90?BC=4??P??ABC???????
B
C
????????P?PD?BC??D??BD=x, ?BDP????y?????????y?x????????
??????????8??????4?.?32?. 11.????:2x2?8?. 12.???(?5a4)?(?8ab2)? .
3
tan??,?t???. 13.????A(3?t)???????OA?x?????????
2
14.?????2xm?2nyn?2m?2?x5y7???????nm???.
15. ??????????3?4????????x2?13x?40?0???????????? .
16. ?????O???AC=?B????????ABC=45 ??O???. 17.???????????????????AB=6cm??cm.
18.????????1?3?6?10?15?21,???????????????????????????x1??????????x2,?n???????xn,?xn+xn+1 .
?????(??:????5????38????????????????????????.
1
19. (6?)
???()?2?|?1??2sin60??(?1?0
2
20. (6?)??????????????ABC???A(0,1)?B(3,2),C(1,4) ???????????.
(1)???ABC??x???????A1B1C1;
(2)??A1B1C1?x???????3???????A2B2C2?????A2?B2?C2????
21. (8?)????x???x2?mx?m?2?0? ?1??????????1??m???
?2?????m????????????????????
22.(8?)????????????????????????????????????ON???????????OM??????????AC=0.66?,BD=0.26???=20 (?????sin20??0.342,cos20??0.940,tan20??0.364). (I)?AB??(???0.01?);
?
(2)???ON=0.8??????????N????M????MN???(?????)
23. (10?)?????????????????3????????????????????????????0.1.2; ?????????????-1,-2?0.??????????????????????x???????????????????????y??????M???(x,y).
(l)?????????????????M???????; (2)??M(x,y)???y=?2/3???????.
?????(?):????5????50?.??????????????????????? 24.(8?)2016??????????????????.???????????????????????????A:???+?????B:?????C:????? D:?????????????????????????????????????????????????.?????????????????????????
.
???????????????????? (1)?????????????????
(2)??????? . (3)??????,??B?????????????
25.(10?) ?????y1=-x+4??????y2=k/x?x>0??????A(m,1),B(1,n)???(1)?k,m,n??;
(2)???????x?1?,y1?y2?????
.
26.(10?)?????EC//AB, ?EDA=?ABF. (1)??:???ABCD??????; (2)??:OA2=OE OF.
27. (10?)?????ABC??AB=AC??D?BC?,BD=DC,??D?DE?Ac????E??O??A?B?Di??? (1)??:AB??O???;
(2)??DE??O???????????; (3)??O????3??BAC=60???DE??
.
28. (12?)????????y=-x2+bx+c??A?3,0??B(0,3)??? ?1?????????????AB????;
(2)??????E?o??????OA???1???/???????A????. ?????F?A??????AB
/???????B??????E?F????????????????????.??EF???????t?.?t??????AEF???????
???2016?????????????(???)
2016?????????????
?????????
???????10??????3????30??
1??3???2016????????????????????? ?
A? B? C? D?
??????A????????????????
B?????????????????
C?????????????????
D?????????????????
???A?
2??3???2016??????1??2?0????????????? ?
A??2 B?0 C? D?1
????????????????????
?2?0?1?? ??????
???C?
3??3???2016??????????????x?1?0????????? ?
A? B? C? D?
??????x?1?0
???x?1?
???C?
4??3???2016???????????????????? ?
A? B? C?
= D? ??????A?????????
B????????????????
C?=3????????
D?=2????????
???B?
5??3???2016????????P?0?m??y?????????M??m??m+1??? ?
A????? B????? C????? D?????
????????P?0?m??y????????
m?0?
?????????
?m?0??m+1?1?
??M??m??m+1???????
???A?
6??3???2016????????AB?CD?DE?CE??1=34???DCE????? ?
A?34 B?54 C?66 D?56
???????AB?CD?
??D=?1=34?
?DE?CE?
??DEC=90?
??DCE=180?90?34=56?
??D?
7??3???2016???????????????????1?4??????????? ?
A?1?16 B?1?4 C?1?6 D?1?2
???????????????????1?4?
?????????????1?2?
?????????????1?2?
???D?
8??3???2016?????????????????????50????????800???????????600????????????????????x???????????????????? ?
A?= B?= C?= D?=
????????????????x???? ?????????A?
9??3???2016??????x+4x?4=0??3?x?2??6?x+1??x?1????? ?
A??6 B?6 C?18 D?30
22???????x+4x?4=0??x+4x=4?
222222???=3?x?4x+4??6?x?1?=3x?12x+12?6x+6=?3x?12x+18=?3?x+4x?+18=?12+18=6?
??B
22=?
10??3???2016?????????ABC??????????A=90?BC=4??P??ABC???????B?A?C????????P?PD?BC??D??BD=x??BDP????y?????????y?x????????? ?
A? B? C? D?
???????A??AH?BC?H?
??ABC?????????
??B=?C=45?BH=CH=AH=BC=2?
?0?x?2????1?
??B=45?
?PD=BD=x?
?
y=?x?x=x?
?2?x?4????2?
2
??C=45?
?PD=CD=4?x?
?
y=??4?x??x=?x+2x?
??A
???????8??????4????32??
211??4???2016??????????2a?8= 2?a+2??a?2? ?
22??????2a?8=2?a?4?=2?a+2??a?2??
?????2?a+2??a?2??
12??4???2016??????????5a????8ab?= 40a ?
42522
????????5a????8ab?=40ab?
52?????40ab?
13??4???2016?????????A?3?t???????OA?x?????????tan?=??t???
?
4252
????????A?AB?x??B?
??A?3?t???????
?AB=t?OB=3?
??tan?=?t=? ??????
=
=?
14??4???2016??????????2x
????????????
???
m?1m+2nn?2m+2y?xy???????n???
57m ? ? ? ?n=3=? ?????
15??4???2016???????????????3?4????????x?13x+40=0???????????? 12 ?
2??????x?13x+40=0?
?x?5??x?8?=0?
??x1=5?x2=8?
???????????3?4?
???????????5?
?????????3+4+5=12?
2
????12?
16??4???2016??????????O???AC=2
??R=
?
??B????????ABC=45???O?
????????ABC=45?
??AOC=90?
?OA=OC=R?
?R+R=?
??R=? ??????
17??4???2016????????????????????????AB=6cm??AC=?
222
?????????????????
?????????
??1=?ACB?
???????????1=?ABC?
??ABC=?ACB?
?AC=AB?
?AB=6cm?
?AC=6cm?
?????6?
18??4???2016?????????????1?3?6?10?15?21????????????????????????????x1??????????x2??n???????xn??xn+xn+1= ?n+1?2 ?
???????x1=1?
x2?3=1+2?
x3=6=1+2+3?
x4?10=1+2+3+4?
x5?15=1+2+3+4+5?
?2016??????????????????
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发表于 2019-9-13 23:46:11