您好,欢迎访问三七文档
当前位置:首页 > 中学教育 > 初中教育 > 2019-2020学年广东省佛山市顺德区九年级上册期末数学试卷含解析【优质版】
2019-20201033013RtABCC=90BC=4AC=3cosAABCD231x23x+k=0kA4B2C4D233A1B2C3D443A3y1B1y2C1y3Y=k0y1y2y3Ay1y2y3By3y2y1Cy3y1y2Dy2y1y353ABCDEABACDEBC=DE=6BCA8B9C10D1263ABCD73x9x26x+k=0kAk1Bk1Ck1Dk183ADEABCA1=CBA=CC2=BD93ab0y=axby=ABCD103y=k0A3636Bk0yxCPxyABOAPBkDy=x6424114x2+2x=0124ABCABCABCABC1313450.251441.6m1.2m15m154y=3x212164RtABDAB=6tanADB=CBDPADPPEACEPFBDFPE+PF=36181762tan45cos30+4sin301862015402019-202048.420152019-2020196ABA120A3721207y=k0A12B2n1OA1B1O=2yPPA+PBP217DC37100AACi=10.5sin370.60cos370.80tan370.75227DRtABCABBCBECDCEBD1A=60AC=CD2BCDE3927239y=x2+bx+cy=x+3ABxCD123xNADNN249ABBCDCBCEBCAEDE1ABEECD2AB=4AE=BC=5CD3AEDECDADABCD259ABCDAB=6cmBC=8cmEBBCCFDDAA2cm1cmFQBCACBCPQt0t41EFt=EFAC2EPEPC3cm2t3EQPADCt2019-20201033013RtABCC=90BC=4AC=3cosAABCDC=90BC=4AC=3AB==5cosA=B231x23x+k=0kA4B2C4D21x23x+k=0:]1231+k=0k=4C33A1B2C3D4D43A3y1B1y2C1y3Y=k0y1y2y3Ay1y2y3By3y2y1Cy3y1y2Dy2y1y3A3y1B1y2C1y3y=k03y1=ky2=ky3=ky1=ky2=ky3=kk0y3y1y2C53ABCDEABACDEBC=DE=6BCA8B9C10D12DEBCADEABC==DE=6=BC=10C63ABCDAABBCCDDD73x9x26x+k=0kAk1Bk1Ck1Dk1x9x26x+k=0=6249k0k1A83ADEABCA1=CBA=CC2=BDA=AB=2C=1AEAB=ADACABCADEAEAD=ACABBACB93ab0y=axby=ABCDAa0b0ab0Ba0b0ab0Ca0b0ab0ab0Dab0C103y=k0A3636Bk0yxCPxyABOAPBkDy=xA3636Bk0yxk0yxCPxyABOAPB|k|DD6424114x2+2x=0x=02x2+2x=0x22x=0xx2=0x=02x=02124ABCABCABCABC131ABCABCABCABC13ABCABC1113450.2515x0.250.25=x=1515151441.6m1.2m15m20mx=x=20m20154y=3x212y=3x12+2y=3x200y=3x21212y=3x12+2y=3x12+2164RtABDAB=6tanADB=CBDPADPPEACEPFBDFPE+PF=RtABDtanADB==AD=6=8BD==10sinD==CBDAC=BC=CDCAD=DRtAPEsinEAP==PE=APRtDPFsinD==PF=PDPE+PF=AP+PD=AD=8=36181762tan45cos30+4sin302tan45cos30+4sin30=21+4=2+2=01862015402019-202048.420152019-202020152019-2020x401+x2=48.4x1=0.1=10%x2=2.120152019-202010%196ABA120AB9A1A3721207y=k0A12B2n1OA1B1O=2yPPA+PBP1A1B1O2AyABAyPPAPA+PBA12y=k=2B21A12BAy=kx+bBAy=x+P0217DC37100AACi=10.5sin370.60cos370.80tan370.75BC=xAB=xtan37==0.75=0.75x=120x=120120227DRtABCABBCBECDCEBD1A=60AC=CD2BCDE1ABCA=60AC=ABC=9060=30AB=2AC=2DRtABCABCD=AB=2=2BECDCEBDBECDDRtABCABCD=BD=ABBECDBCDE3927239y=x2+bx+cy=x+3ABxCD123xNADNN1x=0ABy=x+3y=3B03y=0ABy=x+3x+3=0x=3A30ABy=x2+bx+cb=2c=3y=x2+2x+323y=x2+2x+3=x12+4D14DNA=90DNA=90DNOAD14N10AN=2DN=4AN=2AD=2NDA=90DNA=NDA==AN=10A30N70N1070249ABBCDCBCEBCAEDE1ABEECD2AB=4AE=BC=5CD3AEDECDADABCD1ABBCDCBCB=C=90BAE+AEB=90AEDEAED=90AEB+DEC=90DEC=BAEABEECD2RtABEAB=4AE=5BE=3BC=5EC=53=21ABEECDCD=3ADABCDAD=AB+CDEEFADFAEDECDEAD=DECAED=CADE=EDCDCBCEF=ECDE=DERtDFERtDCEHLDF=DCABEAFDAF=ABAD=AF+DF=AB+CD259ABCDAB=6cmBC=8cmEBBCCFDDAA2cm1cmFQBCACBCPQt0t41EFt=EFAC2EPEPC3cm2t3EQPADCt11ABCDAB=6BC=8AC=10B=D=BCD=90FQBCQCDFQCQ=DFBE=2tDF=tCQ=tCE=BCBE=82tAF=8tEQ=CECQ=83tRtABCcosACB==RtCPQcosACB==CP=tEFACCGE=90=ABCACB+FEQ=90ACB+BAC=90FEQ=BACABCEQFEQ=83t=t=21CE=82tCQ=tRtABCtanACB==RtCPQtanACB===PQ=tEPC3cm2SEPC=CEPQ=82tt=3t=2t23ABCDADBCCAD=ACBEQPADCCAD=QEPACB=QEPEQ=CQCE=2CQ1CQ=tCE=82t82t=2tt=2t2
本文标题:2019-2020学年广东省佛山市顺德区九年级上册期末数学试卷含解析【优质版】
链接地址:https://www.777doc.com/doc-7349683 .html