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文（PDF，无答案）.pdf

1、g20744g1081g7095g7072g16901g20168 g12636 1 g20133 g1953 4 g20133 g20744g1081g7095g7072g16901g20168 g12636 2 g20133 g1953 4 g20133g19g17g18g25g14g19g17g18g26g7736g700g7737g6919g2230g7219g4894g726g2021g3119g726g5093g6030g20744g1081g7072g4502g11g7095g12289g12g16901g20168g1072g451g17977g6425g20168g726g1

2、1g7516g3927g20168g1953g20g21g1114g4671g20168g712g8703g4671g20168g24g2102g712g1953g25g19g2102g12g7141.g5154g11797g19702g2616 2| 5 4 0A x N x x= + g712 2| 4 0B x x= = g712g1083g2119g13571g16874g6208g7263Ag714B A Bg714A B A= Cg714A B A= Dg714 2A B=g21g17g5234g2093g7072 2( ) ( 1) mf x m m x= g3416( )0,+

3、 g1082g7263g3790g2093g7072g15g2121m=Ag7142 Bg7141 Cg7144 Dg7142g6214-13.g16878 , ,x y R g2121“x1g1092y 1”g7263“ 2 2x y+ 2”g11444Ag714g5621g16305g1085g1909g2102g7569g1318 Bg714g1909g2102g1085g5621g16305g7569g1318Cg714g1909g16305g7569g1318 Dg714g7186g1085g1909g2102g2552g1085g5621g16305g7569g13184g714g

4、5154g11797g2733g20168pg726 x R g712 2 0x g712g2733g20168qg726 x R g712 x x g7206, ( ) 23 xxf x = .g7081g709g8818 ( )f x g11444g16403g7616g5439.g7082g709g14613g4649g1323g5951g11444t R ,g1085g12665g5439 ( )2 22 (2 ) 0f t t f t k + g5762g6208g12539,g8818g4558g7072kg11444g2566g1644g14643g3364.22.g5154g1

5、1797g2093g7072 axxxf += 221)( ,g2748 xInxg 1)( =g11g20g12g14613g73g11g91g12g3416g2410g19492g62g713g23g15g25g64g1082g7263g2437g16947g2093g7072g15g8818g4558g7072g68g11444g2566g1644g14643g3364g712g11g21g12g14613g73g11g91g12g3416g91g281g62g19g15g20g64g7206g7481g7472g3927g1644g21g712g8818g68g11444g1644g714g11g22g12g41g11g91g12g32g74g11g91g12g16g73g11g91g12g15g41g11g91g12g3416g2410g19492g62g20g712g711g286g12g1082g2437g16947g17986g3790g712g8818g4558g7072g68g11444g2566g1644g14643g3364