2020-2021学年广东省广州市荔湾区高二(上)期末数学试卷

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b2

Babb2

C

D2

bc2{}aa+aA54

BC

DkA

B

C3D3{}a001{}AC

BD2%71.1491.02

A5.3

B4.6C7.8

100

1FFPFA

xB

xCyDy

xA[0

4+2yBCD12]FFFABC

1121121nnnnnn1nnnn1121121nnnnnn1nnnn1111A

B

C

D二选题共4小）ABx

+m0CqppqDx1|1xx010EFBCPEFPFAC

BD112

FAxBxBAy4C

Bx2D12{}n{}1aT+bA{1}C

B{}DT三填题共4小）13xRx214xmx

1mx+m015ABCBC2PACPC

nnn12nnnn12n34nn16800m3m150120四解题共6小）17A{

2

3x0}{2

20m0}1A2Ax_____218045BO1OA2AB19{}n+1*41

2a++1n+1

S20Bt50B0.5ttA210.9t90tA1xy

2ABz21ABCDADABADDC2ABE1PCD2FPCABD22

M1M2BCAA

n81nn8111111n81nn81111111参考答案一选题共8小）0Aa2b2

Babb2

C

D2bc2a0a2b2ab0abb2Bab001Cc2

bc

2

C{}aa+aA541210D6{}d{}26+a2ada+10a6a+a+d6

kA

B

C3

D

kk

k1k464

nn111﹣nnn1nn1n111nn111﹣nnn1nn1n1112D

k{}a001{}AC

BDa01{}

qn

{}aa0q1{}2%

7

1.1491.02A5.3B4.6CD1+2%1+2%1+2%x1+2%7

+1+2%6++1+2%x5.31aFFPF

121212121212A

xB

xCyDy

x

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4+2yBC

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AzzF210BzzF02z4x+2y[2+2xy+4+2x+xy1+333x10xy1xC

31

111111

FFFAB

CA

B

C

DFcABy22

a

e2e

二选题本共4小题每题分共分．每题出四选中有项符题要，部对得分有错得0分部选的分ABx+m0CqppqDx1|1xA

xAx2+m1+4BpqpqD：1xx220x212xx0DBD10EFBCPEFPFAC

BDOABC

+

+

+

+

2FP

11211211212111112112112121111211212

+

+

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B

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C

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DABD112

FAxBxBAy4C

Bx2DAB12B12yx1A2B2FDABABy240y+4myy4

AyB

B4+y

nnnnnn1nnnnnnnnnnnnnnnnn1nnnnnnnnnnn

D12{}n{}1aT+bA{1}C

B{}DTn2n1

{1}b

n1bb0b{}B

12nnnn111112nnnn1111

n1n2n3

D三填题本共4小题每题5分共20分．13xRx2xR20xRx2xRx214xmx1mx+m000x

mx[1m]1m100015ABCBC2PACPC

11111111AAC2PA

ACPC

16800m3m150120xy34800y

f+23+2x+

150xx40y40297600四解题本共6小题共70分．答写文说、明程演步．17A{23x0}{200}1A2Ax_____2x

30x+22A{x5}xx+mx0m3mB{m}2xAxBBm23mxAxB2xAxBA

18045BO1OA

1121212121211211212121212112nnn12n34nn222333nn2AB11yxx2+30AxBxx+3xy+1+1xxxx+yy102

19{}n+1*41

2a++1n+1Sn23a2212an234a336n+1nn+2

nn124nnn1nn124nnn124n124nnn1n124n

2aN*n

2+1nSa+a+n+1aa+a+a

22

32

nn

]23+n+11[2+3+4+5++n+n+1]2

nnSa+a+n+1

aa+a+a22

32

2n+1223+nnn+2[2+3+4+5++n+n2

++12

+n20Bt50B0.5ttA210.9t90tA

1xy2ABz1xB2zx+0.9z21+0.9yy

x

xy

xy

xz0zz21100B021ABCDADABADDC2ABE1PCD

2FPCABDAAByzB10C2D0E1

BEPDPCPCPDPCPCDBEPCD2

F

BF

12+220z1

ABD

11211