您好,欢迎访问三七文档
当前位置:首页 > 中学教育 > 初中教育 > 七年级数学上册动点问题专题讲解(20200710111352)
1=2ababba+b31.A2B5C.1AAC.2C1A.2.,(1)385,5=8-3,CBA2504-3________(2)-35111(35)2ab__________________.(3)-262.xx1ABC241010AC4/ABC406/ACABC40-20-16-12-8-42016128402AB420.AB23/1AB42AB12AB1CAABBABAC.C10/C3OMABCOA=20cmAB=60cmBC=10cmPOOM1cm/sQCCOOQO1PA=2PBQABQ2Q3cm/sPQ70cm4.AaBbABABab22(3)0aba1AB2CAC=2BCC3OA1/B2/tt.5ABC,C=90,AC=6cm,BC=8cm,QBCPAACC1/,APQB161.AB13PxPABPPPAB5xPOA5B20PAB2ABA20B100ABMPB6/QA4/CCPB6/QA4/DD3AB3PxPABPPPAB5xPOA5B20PAB4AB4PxPABPPPAB10xABPP121/PAB5.A,B,C,AB=1/2AC,C2001BC=300A21PQACRAPQR1052MPRNRQMR=4RNRQ31ED-8000PQEDPQ105MPQQDAQC-AM.6.bab1abc2(5)||0cab2abcABCPxP0202x|1||1|2|5|xxx312ABCA1BC25tBCBCABABBCABt7.ABxyxy08)2(2yx1AB2PABPABMPANPBPABMNMN.3abcdab2ba2c57(d2c)22(d2c)5(d2c)23(d2c).8.3256mnabc,,abc,,ABC1,,abc,,ABC2,,ABC11,2,24/4473CPP,,ABC20P9AaBb|a+4|+b-1)2=0AB|AB||AB|=|a-b|.(1)AB|AB|(2)Px|PA|-|PB|=3x(3)PAMNPAPBPA|PM|+|PN||PN|-|PM|3AB13O10AB315.BA4/.1ABAB343AB(1)AB411ABB12,BAA3.1___________.A(0)CDB24011631ABCD,OCOACD0.5/AB1/AC10
本文标题:七年级数学上册动点问题专题讲解(20200710111352)
链接地址:https://www.777doc.com/doc-7474678 .html