湖北省浠水县实验高级中学2018届高三上学期理数试题 含答?精品 - 百度文库 ر

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1輯A{x|2xx0}B{x|1x2}AB A{2} B{x|1x2} C{x|1x2} D{x|0x1}

2裨1ix1yixyʵxyiڸƽӦĵλ Aһ Bڶ C D

3֪ȱ{an}У3a22a3a4ɵȲУSnΪ{an}ǰnͣ

2

S3 a313 913B3

9AC3 D

7 92

4һöʵؾȵͶΣõĵμΪab򷽳axbx10ʵĸ

7 361B

219C

365D

18A

5fxlogax4x5a1ĵ

2

Aޣ2 Bޣ1 C2ޣ D5ޣ

6һͼͼıΪ

A28 B24?25 C20?45 D20?25 7֪xyRxy0ab1һ A

ab

? xy

Bsinaxsinby Clogaxlogby Dab

8ij˾סͰװƷ֪ײƷ1ͰAԭ2ǧˣBԭ3ǧˣҲƷ1ͰAԭ2ǧˣBԭ1ǧˡÿͰײƷ300ԪÿͰҲƷ400Ԫ˾ҪÿABԭ϶12ǧ˵£ƷAƷB֮͵ֵΪ

x

y

A1800Ԫ B2100Ԫ C2400Ԫ D2700Ԫ

9֪ʽ3xy0ʾƽһPxyֱy?3xֱy??3x2

2

Ĵ߶ηֱΪPAPBPABΪA20 B30 C02 D03

33P켣һ 1610ִгͼx0y1n1xyֵ

Ay2x By3x Cy4x Dy5x

x2y2??10b3Ҷ㣬PQԲϵIJͬ11֪ABֱΪԲ

9b2ҹxԳƣֱAPBQбʷֱΪmnAֱy?1?mnxľΪ1ԲΪ A

1 22 4B

C

1 32 2D

12MⳤΪ2ABCDA1B1C1D1ADе㣬PBCC1B1ڵƽڣƽD1PMֱƽABCDƽBCC1B1ɵȣPC1̾ A25 52 2B

C1 D

6 3ڢѡ⣩

13am1b1m|a?b|?14(3x?3|a?b|ʵm________

123x)12չʽx2ϵΪ________д𰸣

15Ȳ{an}a3a736a4a6275anan1СֵСֵΪ________ 16֪f(x)?2asin(?x??)a0أ0|?|ܦУֱyafx2ͼĺֱ24⣺ ٸú[24]ϵֵ[a2a] [24]ϣҽx3ʱȡֵ