《(完整word版)苏教版初一数学上册期末易错题(难)39453.pdf》由会员分享,可在线阅读,更多相关《(完整word版)苏教版初一数学上册期末易错题(难)39453.pdf(11页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、12000+200010002ab2 2.2x2y 3x2y2 13 -.2 2 3._ xykx 3x ky 4x 5y 2k=_ k=.y4._ m3m=15.5xym 12xny3m+n=_ 6.3 x 2x2x2 17.2n+1&2x2 3x 134x2 6x 7x=1ax3 bx 59x=-1ax3 bx 59aaaa10A.(x 1)2 B|x1|C(x)21 D x2 1 11.xyxyxyab3a 5b12 2x3a x13 3am 2b4a5bn 114.abcd2(ab)cd 15.36332n 116 8b 5ab0ab 17 18 22 8 21,12 24=30402
2、201050 19xyab20 x21.5x 1()x 3x=_ 22.ab2550“()x 2,b23.0123411120201024.I212345925.n 1=41 2 4 7 11 3 5 8 12 6 9 13 10 14 15 75a1a2a2oo=a1n22+1a?n3n32+1 as2/n1+1 26.snA.3n2 B3n1 D.4n 3 27.211 1 22 1 3231 724 115251 3122006 128.7n29.13610149161 15=&4-1DC.4n1 r:1=1+3 A 13=3+10 B 25=9+16 C36=15+21 D49=18+
3、31 30.AOB13263104n 1 1 1 1R 2 a1 3a2a1*332a4a3a2010 37AB251 AB2CACBC38 _ 2232.().33 3435 36 18,18,2a=102009A BCDabcdd 39.11h21h3240430-3040.707301241.20108722AB+1498 7,+136 10 5(1)BAA(2)A(3)0.52942.(1)50a51a2a 83 2 2 3 2 3 3 2 343(2x 3x y 2xy)(x 2xy y)(x 3x y y)1 1 1x=-y=1xx 2 2 244689245.2004090 x(
4、x1)45(1)(x)(x)(2)x=10?46,5/1814/475141048 A,BA B A BA BA B=3m2 2m 5B 2m2 3m 249 950.(1 324(3n51.1003100210041006 m 50.8,nn 5 52.1n1121 112(1)3(2)453.19X 161(1)(2)1 2 3 L n(n 1)n 2 00-00 1 0090 3 00-00 4 1,2,3,4232221L454.I I-L 0 5 A B 20(1)BAcm)cm.,:40125551 222232 2008 S1 222232 20082S2223 24220092S-S 220091 S220091 1 2 22232 200822009 1 1 552 5352009 56.1 1-1-72-18 12AB205 B2010 AB B B