ʱ : һ 【中小学资料】四川省内江?018届高三数学第一次模拟考试试题 ?- 百度文库ϿʼĶ
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Ĵʡڽ2018ѧһģ
ԾֵIѡ⣩͵IIѡ⣩֣4ҳ. ȫ150֣ʱ120ӣʱ뽫𰸴ڴϣڱݸֽϴЧԽأ
ڢѡ⣬60֣
һѡ⣺12С⣬ÿС5֣60֣ÿСĸѡУֻ
һǷĿҪģ 1.֪A?{x|x?0}B?{x|?1?x?1}A?B?
A.(0,??) B. (?1,??) C. (0,1) D. (?1,1) 2.iΪλa?R(1?i)(1?ai)Ǵa?
A.2 B.?2 C. 1 D. ?1 3.sin20cos40?cos20sin140? A.?00003311 B. C. ? D. 22224.˵ȷ
A. ȰѸ꼶2000ѧţ12000ٴӱΪ15050ѧȡ1ѧΪmȻȡΪm?50,m?100,m?150?ѧijǷֲ
?x?a??b?һĵ(x,y) B. ԻعֱyC. ԽǿϵrֵԽӽ1 D.һ1a3ƽ2ݵķ
2 35.ִͼʾijͼaΪ2aֵ A. 2 B. 1 C.
1 D.?1 2*6.֪{an}an?1?2an(n?N)a1?a3?2a5?a7?
A.8 B. 16 C. 32 D. 64
?3x?y?2?0?7.֪ʵx,y?y?x?2?0z?y?2xСֵ
?x?3y?6?0?A. 5 B.?2 C.?3 D.?5
18. Ӽ{2,3,4}ȡx,ylogxy?ĸ
2Сѧ½
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A.
2111 B. C. D. 3236x9.f(x)?x2?2ͼ y-2oy-22yyxo2-2xo2x-2o2x A. B. C. D.210.֪f(x)?sinx?3sinxcosx A.f(x)СΪ2? B.f(x)ֵΪ2 C.f(x)(?5?3,6)ϵݼ D.f(x)ͼֱx??6Գ
11.a?0x?0ʱʽΧ
123x?(1?a)x?alnx?2a?a2aȡֵ22A.(0,1)?(1,??) B.(0,??) C.(1,??) D.(0,1)
*12.n?Nf1(x)?xef2(x)?f1(x)f3(x)?f2(x)fn?1(x)?fn(x)
x???y?fn(x)͵ΪPn
A. n?Nʹ?PnPn?1Pn?2Ϊ B. n?Nʹ?PnPn?1Pn?2Ϊ C. n?Nʹ?PnPn?1Pn?2Ϊֱ D. n?N?PnPn?1Pn?2Ϊ۽ ڢѡ 90֣
⣺4С⣬ÿС5֣20֣
13.֪ABCDı߳Ϊ2AB?(AC?AD)? .
14.סҡλͬѧһ˱ѧԣDZʵ˭˱ѧʱ˵û룻˵ˣ˵˵.λͬѧֻһ˵Ǽٻô˱ѧԵͬѧ . 15.躯f(x)??****x?0?x(x?1),f(x)?2xȡֵΧ . ?2?f(?x),x?016.֪SnǵȲ{an}ǰnͣa1?1,a8?3a3
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aaa2a?3?4???n?1? . S1S2S2S3S3S4SnSn?1
⣺6С⣬70֣Ӧд˵֤̻㲽裮 17.С12֣Sn{an}ǰn.֪a1?1Sn?2?2an?1. {an}ͨʽ
nbn?(?1)an{bn}ǰn.
18.С12֣?ABCڽA,B,CĶԱ߷ֱΪa,b,c֪
bcosC?csinB?0.
C a?5,b?10BCд߽ABڵDBDij.
19.С12֣ijҵмס豸ͬһֲƷΪ˼豸豸ĴƷиȡ50ƷΪһֵֵָָ[100,120)ڣΪϸƷΪϸƷ. 1Ǽ豸Ƶֲͼ1豸Ƶʷֱֲͼ. 1豸Ƶֲ ֵָ Ƶ [95,100) [100,105) [105,110) [110,115) [115,120) [120,125] 1 5 18 19 6 1 ͼ1豸Ƶʷֱֲͼ
ƵΪ. 豸5000ƷеIJϸƷԼжټ джǷ90%İΪҵֲƷֵָס豸ѡйأ
ϸƷ ϸƷ ϼ 豸 豸 ϼ ݱ1ͼ1豸ӽбȽ. Сѧ½
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P(K2k0) k0 20.15 2.072 0.10 2.706 0.050 3.841 0.025 5.024 0.010 6.635 n(ad?bc)2K?.
(a?b)(c?d)(a?c)(b?d)20.С12֣֪f(x)?asinx?bcosx(a,b?R)y?f(x)ڵ
(,f())߷Ϊy?x?. 333abֵ
???f(x?)3(0,?]ϵСֵ. g(x)?2x21.С12֣֪f(x)?e?ax?1(a?R). f(x)ĵԣ
a?1Ƿʵxʹf(x)?0ڣһxڣ˵.
뿼ڵ2223ѡһע⣺ֻѡĿĵһĿƷ֣ʱ2BǦڴϽѡźķͿڣ 2210֣[ѡ4-4]
x??3x?23?t??2tΪֱϵxOyУֱlIJΪ?CIJ?y?1t?2???x?3?3cos?Ϊ??Ϊ. ԭOΪ㣬xΪὨ
??y?3sin?ϵ.
ֱlCļ귽̣
ֱ֪lһMļΪ(2,?)??(0,ͬڼĵNMNֵ.
2310֣[ѡ4-5ʽѡ] ֪f(x)?3x?1?x?2СֵΪm. mֵ
ʵa,b2a?b?m֤2a?b?22?2). OMC
5.
Ĵʡڽи2018һģ
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