河南省淮阳县陈州高级中学2019届高三数学上学期期中试题理（PDF，无答案）.pdf

1、g20744g1081g10806g7072g16901g20168 g12636 1 g20133 g1953 4 g20133 g20744g1081g10806g7072g16901g20168 g12636 2 g20133 g1953 4 g20133g19g17g18g25g14g19g17g18g26g7736g700g7737g6919g2230g7219g4894g726g2021g3119g726g5093g6030g20744g1081g7072g4502g11g10806g12289g12g16901g20168g1072g451g17977g6425g20168g70

2、8g7516g3927g20168g1953g20g21g4671g20168g712g8703g20168g24g2102g712g1953g25g19g2102g709g20g17g16878g19702g2616 g712g19702g2616 g712g2121g36g714 g37g714g38g714 g39g7142g714g2093g7072 23 )21()( = xxxf g11444g19750g9961g6256g3416g11444g2410g19492g1130g708 g709g36g714 g37g714 g38g714 g39g714g22g17g1083g2

3、119g7481g1955g2733g20168g11444g16932g8965g1117g19273g16927g11444g7263g11 g12g36g17g16878a,bRg2121g256g68g33g69g257g7263g256g68g95g68g95g33g69g95g69g95g11444g1909g16305g7569g1318g37g17g14613 qp g1130g11599g2733g20168g712g2121g83g451g84g1117g14371g4673g7481g1072g1114g1130g11599g2733g20168g38g17g2733g2

4、0168g726g256g14613 )(xfy = g7263g5234g2093g7072g712g2121 )(xfy = g11444g3374g17041g1085g13567g17911g12636g3339g17041g19584g257g11444g2646g2733g20168g7263g1655g2733g20168g39g17g2733g20168g256 NnfNn )(, g1092 nnf )( g257g11444g2646g4554g5522g5439g7263g712g256 NnfNn )(, 00 g109200 )( nnf g257g23g17g163

5、05g5575g2144g2093g7072 2sin2y x= g11444g3374g17041g712g2586g19760g4662g2093g7072 = 42cos2xyg11444g3374g17041g1082g6256g7481g11444g9961g36g17g2625g5142g5283g15996g12331g22644 g1114g2437g1405g19375g5334 g37g17g2625g2595g5283g15996g12331g22648 g1114g2437g1405g19375g5334g38g17g2625g2595g5283g15996g12331

6、g22644 g1114g2437g1405g19375g5334 g39g17g2625g5142g5283g15996g12331g22648 g1114g2437g1405g19375g53345. ( )f x g7263Rg1082g3959g2093g7072g712g4649g1323g5951g4558g7072g18221g7481 3( ) ( )2f x f x= g712g5507 1 3( , )2 2x g7206g7122( ) log (2 1)f x x= g712g2121 (2018) (2019)f f+ =g36g714g19 g37g714 g20

7、g38g714 1 g39g714g21g25g714g3416 ABC g1117g712g16386 , ,A B Cg6256g4649g11444g17897g2102g2139g1130 , ,a b cg712 ( )3 ,cosm b c C= g712 ( ),cosn a A=g712/m n g712g2121cosAg11444g1644g12665g1214g36g17 36 g37g17 34 g38g17 33 g39g17 32g26g714g8535g6393g1948g5439 xixeix sincos += g11ig1130g15498g7072g243

8、7g1405g7263g10894g3867g7072g4502g4582g8535g6393g2561g7230g11444g712g4662g6455g7072g11444g4554g1145g3599g6297g3927g2144g3901g7072g19702g712g5418g12539g1206g1081g16386g2093g7072g2748g6455g7072g2093g7072g11444g13956g13099g712g16091g16569g1130g256g7072g4502g1117g11444g3929g7829g257g714g7785g6558g8535g63

9、93g1948g5439g2591g11797g712 ii ee 36 + g16024g12138g11444g3901g7072g11444g8273g1130g36g714 2 13 + g37g714 2 13 g38g714 2 26 + g39g714 2 26 g27g17g14613g2093g7072 )25sin()sin(3)( xxxf += g15g1092 |,0)(,2)( = ff g11444g7472g4671g1644g72632 g712g2121 )(xf g11444g2437g16947g17986g3790g2410g19492g7263g36

10、g17 )(32,322 Zkkk + g37g17 )(62,652 Zkkk + g38g17 )(12,125 Zkkk + g39g17 )(6,3 Zkkk + 9g714g16878g7145g12347 1|ln|2 =xxg7481g1108g1114g1085g12665g11444g4558g7785 1x g2748 2x g712g2121(A) 021 xx (D)g714 10 21 g2121g1083g2119g1955g1214g2093g7072 ( ) 1 1( 0)y f f kx k= + + g11444g19750g9961g1114g7072g1

11、1444g2132g7133g8595g11934g11444g7263g36g17g5507g78g33g19g7206g712g7481g22g1114g19750g9961g727g5507g78g31g19g7206g712g7481g23g1114g19750g9961g37g17g5507g78g33g19g7206g712g7481g23g1114g19750g9961g727g5507g78g31g19g7206g712g7481g22g1114g19750g9961g38g17g7184g16874g78g1130g1413g1644g712g3447g7481g22g111

12、4g19750g9961g39g17g7184g16874g78g1130g1413g1644g712g3447g7481g23g1114g19750g9961g1212g451g3739g12458g20168g708g7516g3927g20168g1953g23g4671g20168g712g8703g4671g20168g24g2102g712g1953g21g19g2102g70913.g16878 1eg712 2eg7263g3945g16386g113060g11444g2437g1405g2625g18431g712 1 22 3OP e e= +g712g2121OP=_.

13、14. ( ) _4sin222 =+ dxxx-g20g24g17 g16878 g19264 g16386 ABC g1081 g1114 g1973 g16386 g36g15g37g15g38 g6256 g4649 g11444 g17897 g2102 g2139 g1130 g68g15g69g15g70g15 g146133( cos cos ) 2 sin ,a B b A c C+ = 1,b = g2121g70g11444g2566g1644g14643g3364g1130 g1716.g4649g1214g1323g5951g11444g8595g4558g7072x

14、 g712yg18221g7481g7082x ey )ln xy mex g6208g12539g712g2121g4558g7072mg11444g2566g1644g14643g3364g1130 g17g20744g1081g10806g7072g16901g20168 g12636 3 g20133 g1953 4 g20133 g20744g1081g10806g7072g16901g20168 g12636 4 g20133 g1953 4 g20133g1081g451g16403g12676g20168g708g1953g26g19g2102g452g16403g12676g

15、5316g1993g2090g7095g4487g16932g7230g451g16881g7230g17911g12347g6214g9540g12743g8597g20692g709g20g26g714g11g7516g4671g20168g9489g2102g20g21g2102g12g5154g11797g5234g2093g7072 242 2)1()( += mmxmxf g3416( )+,0 g1082g2437g16947g17986g3790g712g2093g7072kxg x = 2)( g714g11g265g12g8818mg11444g1644g727g11g26

16、6g12g5507 )2,1x g7206g712g16864 )(),( xgxf g11444g1644g3599g2102g2139g1130g19702g2616 BA, g712g16878g2733g20168 Axp : g712g2733g20168Bxq : g712g14613g2733g20168pg7263qg6208g12539g11444g5621g16305g7569g1318g712g8818g4558g7072kg11444g2566g1644g14643g3364g20g27g17g708g7516g2016812g2102g709g4018g3374g62

17、56g12138g712g3416g3339g17897g5522ABCDg1117g712 D =2 B g712g1092 1AD = g712 3CD = g7123cos3B = g714g708g265g709g8818g440ACDg11444g19858g12319g727g708g266g709g14613 2 3BC = g712g8818ABg11444g19375g714( ) 23cos3sin212.19 += xxxf g2102g709g16878g2093g7072g708g7516g20168g17g708g20g709g8818 ( )f x g11444g

18、2437g16947g3790g2410g19492g727g708g21g709g5154g11797 ABC g11444g1973g16386g2102g2139g1130g36g15g37g15g38g15g14613 32 2Af = g712g1092 ABC g14125g3919g11526g1407g11444g7472g3927g3382g19858g12319g1130g712g8818AB AC g11444g7472g4671g1644g17g21g19g17g708g7424g4579g20076g9397g2010g20g21g2010g709g16059g111

19、7g16117g7481g3364g7931g21761g14498g2748g11437g14498g7931g4480g19537g7626g712g1278g1117g1323g25662g7626g7931g4480g18221g7263g11437g14498g11444g8114g10679g113017 . g10720g7481g11106g451g1161g1108g1258g1278g16059g1117g17822g9073g6824g2566g1072g7626g7931g4480g452g11106g1912g6824g712g1161g2622g2566g712g1

20、0086g2622g11106g1981g2566g712g258g258g712g2566g2622g3447g1085g7022g3342g712g11556g2144g7481g1072g1258g2566g2144g11437g7931g2467g13560g8594. g8703g7626g7931g4480g3416g8703g1072g8529g16091g6824g2090g11444g7530g1354g18221g7263g12665g2591g14125g11444g452g11096Xg16024g12138g2566g7931g4480g13560g8594g7206

21、g6256g19760g11444g2566g7931g4480g11444g8529g7072.g708g20g709g8818g19647g7530g2568g18431Xg11444g8114g10679g2102g5171g2119g2748g7072g4502g7503g7499 ( )E X g727g708g21g709g8818g11106g2566g2144g11437g10803g11444g8114g10679.g21g20g17g708g7516g4671g20168g9489g2102g20g21g2102g709g5154g11797g2093g7072 ( )2(

22、 ) 1 .xf x x e x= +g708g20g709g8818 ( )f x g3416 1,12x g1082g11444g7472g1644g727g708g21g709g14613 ( ) ( ) ,xg x f x ae x= g5507 ( )g x g7481g1108g1114g7601g1644g9961 1 2 1 2, ( )x x x x g7206g712g5739g7481( ) ( )( )22 12 1xe g x t x e + + g712g8818g8596g7206g4558g7072g87g11444g1644g1722.g17977g15664

23、-4g726g3456g7735g13099g1086g2546g7072g7145g12347g3416g5283g19858g11556g16386g3456g7735g13099xOyg1117g712g7458g13551Cg726 2 2 6 0x y x+ = g712g11556g13551 1l g726 3 0x y = g712g11556g13551 2l g726 3 0x y = g712g1301g3456g7735g2511g9961g1130g7601g9961g712xg17828g8595g2426g17828g1130g7601g17828g712g541

24、8g12539g7601g3456g7735g13099.g7081g709g1993g2090g7458g13551Cg11444g2546g7072g7145g12347g1301g2554g11556g13551 1l g712 2l g11444g7601g3456g7735g7145g12347g727g7082g709g14613g11556g13551 1l g1086g7458g13551Cg2102g2139g1236g1214Og712Ag1108g9961g712g11556g13551 2l g1086g7458g13551Cg2102g2139g1236g1214Og712Bg1108g9961g712g8818 AOB g11444g19858g12319.23. g14613g1955g1214 g11444g1085g12665g5439 g11444g16403g19702g1130 g712g16864g4558g7072g11444g7472g3927g1644g1130 .g7081g709g8818 g727g7082g709g14613g8595g4558g7072 g9489g17379 g712g8818 g11444g7472g4671g1644.AB CD