2020-2021学年天津市四校联考高二(下)期末数学试卷附答案

UU学年天津市四校考高二（下期末数学卷一选题共9小，每题分共45分）U{211}A{2+0}{01}AA{20}C{01}

B{211}D{201}xRx2x+6x40AC

BD0.85+2.1xy

3.3

4.8

5.7A

B

C1.6

D1.4xecosA

BC

D100122A12PBAA

B

C

D3

12112212112211222A

B

C30

D24xxex2lA

B

C

D

2mA550m2

Bm

C528m

D2fxxlnx①xff②x+fxfx③

④lnx1xffxfA①②③

B②④

C①③④

D①④二填题本题6题每题分，分．将确答填到题上试题包个的答1个的分全答的5分．nN

2np+

9

x

XN910P89+32

bab

f6fxRa三解题本题5小题共75分．答写文说，明程或算骤AXfxx

++cRfx{12}bx2

+012q2x1+pb1c2xx0fx2a+1x+lnxRa1yfx4fxf[3]2311100085

00008X²kPK

0.1

K

na++16xxxxx0xkx+0kN*n+1

UUUUUU参考答案一选题本共9小题每题5分，45分在小给的个项中有项符题要的请正答的号涂答卡．U{211}A{2

+0}{01}BA{20}B{1}C{21}D{11}U{101}{12}{01}{1}A{21}BxRx2x+6x40AC

BDx

5+6x3x0x2x+6040x402

5+60xx+6xB0.85+2.1xy

3.3

4.8

5.7A

B

C1.6

D1.4

1.4D

0.85+2.1xecosA

BC

Dxfxex0xxx0e1cos1exyxfD

0B100122A12PBAA

B

C

D313

22PA3A

B

C30

D242①52②22①52215②2A230xxex2l

2A

B

C

Dxxefxx3

222xxe

x2l

y22

3e

x2ye2

x2

xy

2xf

x

x2切l

轴的SA

1211221211221122211211

2mA550m2

Bm

C528m

D2

2mD

x40504

fxxlnx①xff②x+fxfx③

④lnx1xffxfA①②③

B②④

C①③④

D①④①glnxx0+0xgx①

fxfx

121211212121122111112121121212112211112211222112121222r+1②xfx+xlnx+hxlnx+2x0x2h002

h02e2+0x2hxhxfxf②③mxfxxxmlnx1mmx1xmxmxfxfxxfx③④lnxfx+1①xx+fx2xfxx[fx]+[xf]x[fxf]0xffxxx④D二填题本题6题每题分，分．将确答填到题上试题包个的答1个的分全答的5分．nNnN22n

pnNn

2n

pnN，22n

Nn+

9

x

rx+

9

T

3rx

126X

N910P89+0.5NX9P10P10P910X10P+P100.50.532bab

a0

2a+

2ab2ab

2

0

x

3+sinxf2xRa1]fff632xffRf0Rx

+cosRx32

+cosxxfxax+sinxafxx36+sinxf3xxx32x3xfx2xfx2xRxRxx2

a0ax2+cosxg32

+cosx6sinxgx0xRx0x0gxxxgga1]1]

三解题本题5小题共75分．答写文说，明程或算骤AXIAIIX013IAIIX2PX0

PX1PX2

PX3

fxx

++cR）fx{12}bx2

+012q2x1+pb1c2xx0bcqpa1a2fx02x

+bx+0bcbx2cx0x2+80x

x[px2x1+apq

aa[3+b1c2fx2

+ax+20

2ax{1}aaa1{12}a2{2a1}a3{1}a3{1}

a3{2x1}fx2a+1x+lnx）a1yfx4fxf[3]a1fxxx+fxf4lnfxxx20fa1xx+lnxxx2+kf42ln2yf4fylnxx436+8ln0f+fx2f2a

f2

x+lnxxx12fx0x23fx0xf22

2+ln22+1f3+ln3f1f2+ln

0000231110085

8X²k

0.1

PK

k

K

na++I857851

IIIII5X03I858535

85

IIK

0.05IIII5850123PX0PX1PX2PX3

XP

1

16xxxxx0xkx+0k*n+1fxexfxx+e

xxxxkx++1x0k

+x

+khxxx1x0x1lnxxln

f1

xf0fxf0fxfx+xg1+xxxkg++1xxkx+x+1