һ - רҵ·ĵϷƽ̨

2019年河北中考数学复习专题四函数的图像与性质试题. - 百度文库

Դû ʱ䣺2025/6/12 9:52:46 loading ƪĵֻ
˵ݽԤݿܲȫҪĵҪݣwordʹáword΢ź:xxxxxxxQQxxxxxx ܸṩĵл֧½⡣

15

(3)P(xx)

22

111155

ɡPCA͡PDBȣá(x4)|1|(2x)x.

222222155

x 224

55

P()

24

3 κͼ

2

16(2016ͤһģ)ͬһƽֱϵУyaxbxybxaͼ( C )

A B C D

2

17(2015̨)ͼ֪Ϊ(36)yaxbxc(14)нд( C )

Ab4ac

2

Baxbxcݣ6

C(2m)(5n)ϣmn

2

DxһԪηaxbxc4Ϊ5ͣ1

2

18(2014)֪κyx4x3.

(1)䷽亯ĶC꣬úĺֵԱ (2)ͼxĽAB꼰ABC

222

⣺(1)yx4x3x4x41(x2)1. 亯ĶCΪ(21)

߿ϣ൱x2ʱyxС x>2ʱyx

2

(2)y0x4x30x11x23. ൱AڵBʱA(10)B(30) AڵBҲʱA(30)B(10) AB|13|2.

CCDxڵD 1

SABCABCD

21

21

2

1.

2

19(2016ɽƽһģı)ƽֱϵxOyУymx2mx2(m0)yύڵA

2

xύڵB. (1)ABꣻ

(2)xֻΨһĹ㣬ȷmȡֵȡֵΧ ⣺(1)x0ʱy2.A(02) 2m

߶ԳΪֱx1B(10)

2m

(2)xֻһ㣬 222

b4ac(2m)4m(2)4m8m0.m10m22. ֡m0m2.

12

20(2016ģ)ͼκyxbxcͼ񾭹A(40)B(44)yύڵC.

4(1)˶κĽʽ

(2)֤BAOCAO(Oԭ)

(3)P߶ABϵһ(ABغ)Pyƽߣֱ𽻴˶κͼxQH㣬ʣǷĵPʹPH2QHڣPꣻڣ˵ɣ

⣺(1)ߵA(40)B(44)ڶκͼϣ

??044bc? ?444bc.?

1??b?2

??c2.

121

κʽΪyxx2.

42

(2)֤BBDxڵD(1)C(02) CO21

RtAOCУtanCAO

AO42BD41

RtABDУtanBAD.

AD82tanCAOtanBADCAOBAO.

1

(3)ɵA(40)B(44)ɵֱABĽʽΪyx2.

21121

P(xx2)(4x4)Q(xxx2)

24211121

PH|x2|2xQH|xx2|.

22421121

2x2|xx2|.

242112

2xxx4ʱ

22

5

x11x24(ȥ)P(1)

2112

2xxx4ʱ

22

7

x13x24(ȥ)P(3)

2

57

ĵP(1)(3)

22

2019年河北中考数学复习专题四函数的图像与性质试题. - 百度文库.doc ĵWordĵصԣ㸴ơ༭ղغʹӡ
Ƽ
Copyright © 2012-2023 һ Ȩ | ϵ
:վز֪ʶȨݡϢ紫ȨתصƷַȨ,һ֪ͨǣǻἰʱɾ
ͷQQxxxxxx 䣺xxxxxx@qq.com
ICP2023013149
Top