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2017年山东省淄博市中考数学试卷解析版 - 百度文库

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2017ɽʡͲпѧ(word)

ڢѡ 48֣

һѡ⣺⹲12С⣬ÿС4֣48֣ÿСĸѡУֻһǷĿҪģ

2෴ǣ 33322A B? C D?

22331 ?㡿෴

ݣʷ෴ֵȵǻΪ෴⼴ɣ

22𡿽⣺?෴ǣ

33ѡC

2C919ɻйȫ֪ʶȨĸ÷ɻ㲿100뽫100ÿѧʾΪ

A1?10 B100?10 C1?10 D0.1?10

6475㡿ѧʾϴ

ѧıʾʽΪa10nʽ1|a|10nΪȷnֵʱҪԭaʱСƶ˶λnľֵСƶλͬԭֵ1ʱnԭľֵ1ʱnǸ

𡿽⣺100=1000000=1106 ʴΪA

3мУͼΪεǣ

A B C D

ͼǴ濴õͼΣ

𡿽⣺ͼǴ濴õͼΪεD ѡD

⿼ѧ˼ͶԼͼĿռ

4ȷǣ

236A a?a?a B(?a)??a

2351094222C a?a?a(a?0) D(?bc)?(?bc)??bc

ʽ㷨򼴿𰸣 𡿽⣺

Aԭʽ=a5Aȷ Bԭʽ=a6Bȷ

Dԭʽ=b2c2Dȷ ѡC

⿼ʽ㣬Ĺؼʽ㷨򣬱ڻͣ

|x|?1ֵΪ㣬xֵǣ x?1A1 B-1 C ?1 D2

ʽķĸΪ0 𡿽⣺

|x|?1=0 x?1??x?1?0?x?1?0

x?1

ѡA

⿼ʽ壬Ĺؼס֪ʶ㣬ڻͣ

6a?b?3a?b?7abڣ A2 B1 C-2 D-1

22㡿ȫƽʽʽֵ˼

ȫƽʽa?b?3Σɵã 𡿽⣺

a?b?3 ?a?b?2?9

a2?2ab?b2?9a2?b2?7 ab=1

ѡB

7κy?x?2x?1ͼxƽ2λȣõĺʽǣ

Ay?(x?3)?2 By?(x?3)?2 C y?(x?1)?2 Dy?(x?1)?2

22222㡿κƽ

öκƽƹɣٽ߽ʽתΪʽ

y??x?h??kȷ䶥?h,k?hֵƣƣkֵƣ

2ƣɰ־Ҽϼ¼ɡ 𡿽⣺y?x2?2x?1Ϊʽy??x?1??2

2xƽ2λ y?(x?1)2?2

ѡD

8xһԪηkx?2x?1?0ȵʵʵkȡֵΧǣ

Ak??1 Bk??1k?0 C k??1 Dk??1k?0

2㡿бʽ

бʽõ=224k10k0Ȼⲻʽɣ

𡿽⣺á=224k10k0 k??1k?0

ѡD

9ͼԲֱBCǡֱABCһֱDZȫغϣBC?4ͼӰֵǣ 21

[ A2?? B2?2? C 4?? D2?4?

㡿ļ㣻

ODCDSӰ=SԲSBD=SԲ(SBODSBOD)ùε21cnjy.com

𡿽⣺ͼODCD SӰ

=SԲSBD

=SԲ(SBODSBOD)

11?1?=?22????22??2?2? 22?4?=2??

ѡA

10һ͸ĴװĸСϷֱ6789ĸ֣ЩСⶼͬס桰֡ϷȴӴһС򣬽СϵּΪmҲСϵ֣Ϊnm,n|m?n|?1ôͳƼסˡᡱˡᡱĸǣ 21*

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