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绵阳市高中2016级第三次诊断性考试 理科数学(扫描版)
6tt4020162tX7t40t40.X22823424024725412560228234240247254BCDAACDBCBCA4520P313114152416328670YuY4u80171cosC=2acosC=2bcY232236240244248.2a=2bcb2+c2a2=bc3232236240244248cosA==5PA(0)11A=6EX()EY()2ABDAB=3BD=cosA=12191PPOADOAOBO13=9+AD23ADPAD=120ºPAO=60ºAD=4()93BDACRtPAOPO=PAsinPAO=2sin60º=2=322DACBAD=120ºzAC=2AD=8BAO=60ºPSABC=ABACsinA==12PA=ABPAO=BAO=60ºAO=AOEPAOBAO(SAS)18140AADOyBO=PO=344FBCEFPABDx1727 EFPBD26PB=2EF=2=6222222abcab522222b4a9PBPOBOPOBO5E4ADBO=O2S6S5PANPBMPOABCDPOPADPADABCD6PN3PM2OxyzMx(y)Nx(y)1112A(010)P(003)B(300)D(030)PM=(x1y1)PN=(x2y2)E(0)F(0)7(x2y2)=3(x1y1)ABCDn1=(001)8x2=3x1ACEn2=(xyz)AE=(0)AF=(0)613ykx23yz02AE022x2y2y8x=1y=z=1.12AF03194xy022ACEn2=(11)1028kE-AC-D9cos=|cosn1n2|=||=928kE-AC-D12942201PBBAk113BAP42lk123P(0)A(a0)211fx()xalnxPA2PB3747 fx()fx()=0gt()011gt()(1+)gx()xalnxgt()查看更多
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