新九年級上學(xué)期期中考試數(shù)學(xué)試題_第1頁
新九年級上學(xué)期期中考試數(shù)學(xué)試題_第2頁
新九年級上學(xué)期期中考試數(shù)學(xué)試題_第3頁
新九年級上學(xué)期期中考試數(shù)學(xué)試題_第4頁
新九年級上學(xué)期期中考試數(shù)學(xué)試題_第5頁
已閱讀5頁,還剩65頁未讀, 繼續(xù)免費閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進行舉報或認領(lǐng)

文檔簡介

1、OOllyxyxPAPBOABABAPBABPAOABOABOOCABBOCADCeqoac(,7)ABCABACcmBCcmDBCDcmADADADOABCBOCBACxyaxbxcaxbxcaabcxxxxxOOxMMOxOMmmMOAOxC(eqoac(,11)ABCABcmBCcmABCeqoac(,30)ABCBCABCACcm(cmcm(cmAAPyxPAQPQcmcmeqoac(,14)ABCABOBCOy(填“”、yy點A)、Byxxyyy(填“”、yy“”、“”)yxxmxxxmOODABCAOOEECABCDECOcmABCDOABCDABcmCDcmABCDMNOMNAO

2、AMNBANPMNPAPB(yaxbxcaxA)、B求:(xy(CDOABCDMPABCBPC(ABOCCFCDABDAEFACAFOMANANOAOMANDDEAMEDEOOEEDAAEOE(xOyymxmxmmxABmABABABmABCDDOOllOrOldlOdrlOdrlOdrOOLrddrClOdrlOdrlOdryxyxyxyxyxyxBPAPBOABABAPBABPAPAeqoac(,PB)PABPAABPAPBOABPAPBAPBPABPAABCOABOABOOCABCOAACOCOOCABCACACBCABeqoac(,Rt)AOCOCCOOCABBOCADCOCABADC

3、COBOCABADCCOBBeqoac(,7)ABCABACcmBCcmDBCDcmADADADADADBCeqoac(,Rt)ABDABcmBDBCcmADcmADADABACDBCADBCBDBCcmeqoac(,Rt)ABDABcmBDcmADcmDcmADBOrPOPdPdrPdrPdrOABCBOCBACBACOABCBOCAABACCxyaxbxcaxbxcaabcxxxxxyaxbxcxaxbxcaxbxcyaxbxcxaxbxcyaxbxcxyyyxxDyaxbxcxaxbxcOOxMMOxOMmmMOAOxC(Deqoac(,AD)AODODOAAODOCDADADOODAD

4、AODODOAAODOCODC)Aeqoac(,11)ABCABcmBCcmABCeqoac(,30)ABCBCABCACcm(cmcm(cmeqoac(,BC)eqoac(,A)BCAeqoac(,BC)eqoac(,A)BCAACcmAACAAPyxPAQPQAPAQAQPQPQAPPQyxyBxCB),C),BCAPBCPAPAPPQAPAQPQAQPQeqoac(,Rt)APQPQAPPQyxyBxCB),C),BCAPBCPAPAPBCBOACAPPQCcmcmrcmrcmrcm),leqoac(,14)ABCABOBCOABCyBCABBCyABCABCBCABOABCBCOABC

5、Ay)、Byyxxyyy“”、“”)AByyyxxxyxAy)、Byyxxyyyxxmxxxmxxyxxmxxxxxmyxxmxx),xxxyxxmxxxmxxxxOODABCAOOEECABCDECBEORODABACBCABeqoac(,Rt)AOCOAROCCDRROCOCABEBEOCABEeqoac(,Rt)BCECEBEORODABACBCABeqoac(,Rt)AOCOAROCCDOCACOARROCBEOCAEABEeqoac(,Rt)BCECEOcmABCDOABCDABcmCDcmABCDcmcmABCDOOBODOMABMCDNABCDONCDMNABCDOMONABCD

6、OOBODOMABMCDNABCDMNCDMNABCDOMONABCDOOBODOMABMCDNABCDONCDABcmCDcmBMcmDNcmOcmOBODcmOMcmONcmMNONOMMNcmABCDOOBODOMABMCDNABCDONCDABcmCDcmBMcmDNcmOcmOBODcmOMcmONcmMNOMONMNcmABCDcmcmcmcmMNOMNAOAMNBANPMNPAPBLABLABLLPBMNCACMNPPPAPBACOAOCAMNAONANBNCNAOCOAOCACP(O(yaxbxcaxA)、B求:(xyxyax)(xax解:(yaxbxcaxA)、B),x),y

7、ax)(x),a)(ayx)(x),yxxxyxyaxbxcabcaxx(CDOABCDMPABCBPCABCDACBCACBCBPCAeqoac(,60)ABCABCABCDCDOACBCACBCBPCAABC(ABOCCFCDABDAEFACAFBCABOACBCDABACFBCAFCFBCABOACBACFBCDCDABBBCDACFBBCAEACFCAECBCAEACFCAEAFCFOMANANOAOMANDDEAMEDEOOEEDAAEOEODDEOODDEEDAAEADDEADOeqoac(,60)ADOODOEODADMANEADOADOAODODAOADEADODADEAMEA

8、EDEADEDAODAEDAODEDDEOEDAODAOAODADOeqoac(,Rt)AEDAEADODADeqoac(,Rt)ODE(xOyymxmxmmxABmABABABmmABAm解:(ymxmxmmx)myxxyxA),B),ABABABA),mmmmxyx(xxxxxxxxyxxyOOABOABABCDOBCDBODyaxaxaxxxxxxxxxxkxxkkkkkkkkOxMyNMNMNPPab),則aby(填“”、abababy(填“”、ymxmOOcmABCDOABCDABcmCDcmABCDyAy)、Byxxmyyyy“”、“”)ABCDABCeqoac(,30)DCBCD

9、AACEABBCBD(xxxxx(A),B),C)eqoac(,1)ABCOeqoac(,A)BCeqoac(,2)ABCCAChmsthtshmhtts(APBCOAPCCPBeqoac(,60)ABC(aa(MNOABACOADCAMDEMNEDEO(xxxmmabyaabby(ABCBPBCBPxAPy),已知yxQABBCAHeqoac(,2)ABPBP(ABCBCABCACDBADAB重合),MCACDOBANONMECEDEBNANCDDEABCDByx(yaxhkhkyx),CxxxxxxxxxxxxxCyxxyxxxyyxxyAOOABOABODOAOBOEABOEDEODOE

10、cmDABcmOEcmcmODOHcmHGFABGFHEABHEOEOHcmGFABcmGFABcmCABcmABCDOBCDBODAABCDOABCDBODADyaxaxaxxxxyaxaxaxBxxxxxxxxAxkxxkkkkkkkkkkkxkxxkeqoac(,0)kkkkkkBaxbxcaeqoac(,0)beqoac(,ac)eqoac(,0)OxMyNMNMNPPab),則abababababPabOPababCymxmmmmmOlllOcmABCDOABCDABcmCDcmABCDcmcmABCDOOBODOMABMCDNABCDONCDMNABCDOMONABCDOOBODO

11、MABMCDNABCDMNCDMNABCDOMONABCDOOBODOMABMCDNABCDONCDABcmCDcmBMcmDNcmOcmOBODcmOMcmONcmMNONOMMNcmABCDOOBODOMABMCDNABCDONCDABcmCDcmBMcmDNcmOcmOBODcmOMcmONcmMNOMONMNcmABCDcmcmcmcmy(填“”、y(填“”、Ay)、Byyxxmyyy“”、“”)xyxyxxmxmxAy)、Byyxxmyyyxyaxa),yaxaayxyxABCDABCeqoac(,30)DCBCDAACEABBCBDeqoac(,BE)DCBCeqoac(,60)A

12、CEBDeqoac(,AE)BCECBEBEAEBDBEDCBCeqoac(,60)ACEBCCEBCEBCECBEBEBCBDAEABCABEABAEBDAE(xxxxx解:(abcxx)(xxxxx(A),B),C)eqoac(,1)ABCOeqoac(,A)BCeqoac(,2)ABCCAC解:(eqoac(,1)ABCeqoac(,2)ABCCACCAACAhmsthtshmhttshthatbtaththababth解:(thhthatbta),ththhthttts),此時hm)s(APBCOAPCCPBeqoac(,60)ABCABCCPBCABCPBABCCPBCABCPBAB

13、C(aaaaa)(aaa(MNOABACOADCAMDEMNEDEOODMNODDEODDEOODOAODADCAMMNODDEMNDEODDEODEO(xxxmmabyaabbyeqoac(,1)mmmmaambbmyaabbaabbymmy解:(xxxmeqoac(,1)mmmmmxxxxxabaambbmyaabbaabbmmyeqoac(,0)mm的值;(aambbm(ABCBPBCBPxAPy),已知yxQABBCAHeqoac(,2)ABPBPAPBCAPAPAPAHABHABAPBBPBAPBPABAPBCAPQAHBCeqoac(,Rt)ABHBABAPBeqoac(,90)A

14、BPBBAPBPABBAPeqoac(,90)ABPBAPBBPABABPBPAHBPAB(ABCBCABCACDBADAB重合),MCACDOBANONMECEDEBNANCDDECNDCNANCNMCEDCDECNECDOCNDCNABBCACBNANCDDEABCBCABNANCNANMCANMCNACNACNMCDECNECDOCEDDCECDEDECECEDECDCDDExxxx(x(x(x(xxyxxxxyxyxyxyxyxyxxxxxx)(xyxyxxxxxxxcmcmcmcmcmxxxababyxyxy);xyxyaxbxcx),(yxxPxyxxyxbxc),點(ABCxxk

15、xkkkxxABCDABcmBCcmPAABBcmQBBCCcmPQBCDPQDPQDPQPDyxABABCCODODOCABDMNMNODMABCDBxxabcbacxxCxx(x(x(x(xxxxxxCxxaxbxca)這axabxcxxByxxxxyxyxxxxxyxxyxCCyxyxyxyxyxyx),yxCxxxxx)(xx)(xxxxxxxxxxxxxxxxxx)(xxxxxxxxxxxxxx)(xxxxxxxxxCyxyxxxxxxxxxyxyxxyxxCxxxxxxxCcmcmcmcmcmxxxxScmAxxxxxxxxxxxxxxxxxabababyxyxy);xyxayxx

16、ayxy),yxxyxxyxyxxyxxyaxbxcx),(x),(xx),(),xxxyxxyxxxxxxy)PxyxyP),x),y);();()xxxxxxxxxxyxbxc),點(yx)(x),yxxxxxxxxxxxxxxxxxABCyaxyyaxaayxyxyxxxxxxkxkkkeqoac(,1)xkkkkkkeqoac(,1)kkxkkkkkkkkxxxxxxxxx),xxxxx(舍),xx時,(x時,(ABCDABcmBCcmPAABBcmQBBCCcmPQBCDPQDPQDPQPDPAeqoac(,BQ)DPQDPPQDQPQDQDPxQPQDQPQDAPBQABCDABCABCDcmBCADcmPBcm),CQBCBQcm),eqoac(,S)Seqoac(,S)eqoac(,S)eqoac(,S)cm)tAPBPBQCQeqoac(,Rt)DAPDPDAAPeqoac(,Rt)DCQDQDCCQeqoac(,Rt)QBPQPQBBPDQQPDQQPDPDPQxQPQDOPPBBQxxQDQCCDxxxxxxxDPQPDyxABABCCODODOCABDMNMNODMyyxOACDBCSAS),則BDOAOBDODODy)、();CDBDyxOAABABCABCACBCACBCABCAOCODODeqoac(,OC)OCDODCDCOOCDOCAA

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論