安徽省“皖东县中联盟”2021-2022学年高三上学期期末联考文科数学试题（含答案与解析）

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15ᵫÛ×aᳮkcosg^^~—h2=-2ac2Ý28e(O,»),ᡠÒ8=0.ூ¢É2lD௃C______277Ý2cos஺=ÞßC£(0,à)ᡠÒsinC=J1ácos2C=~T~■TTTTÝ28=J,8M2NABCḄ8ᑖÓᡠÒNMBC=-.36ᡠÒsin/BMC=sin[ã-ZMBC-ZC]=sin(ZA/BC+ZC)=sin/MBCcosZC+cosZMBCsinZC1V21G2"=—X-----1x27273A/2T142BCᙠLMBCᵫ×aᳮk=———,ᓽàà—3CDk:sinCsm/BMC~19.n%åᦪf(x)=2cos2X+2V3sinxcosx-l(x€R).(1)eåᦪ/(x)Ḅᨬ¢ᕜèVÏéêÁ(2)Âåᦪg(x)=/(gx+?)ëS-(ì|),6€(—?,|ã)esin஺Ḅî.1(JTJTூ?ᫀ௃(1)T=7T,Ïéê2x=?+?(ZeZ)Á26■/)3-4^3ফsin(9=----------10ூD᪆௃7Tூᑖ᪆௃(1)£ᵨáð6Û׿Àñò6¿Àdk/(x)=2sin(2x+2),ᵫ×åᦪḄឋeᨬ¢6ᕜèÏéê.

1657rS77TT37r(2)ᵫ(1)n%kg(x)=2sin(x+=)ஹ6*+-^6(-,^-),óᔠᐸᡠS-dk622,Ú£ᵨV6׿Àஹö656åᦪḄ8ᐵ÷esin஺øùû.ூ¢É1lD௃ᵫ⚪K/(x)=cos2x+>/3sin2x=2sin(2x+—),ᡠÒᨬ¢ᕜè2T=—=ã2ü2%+ý=ᦇà+ý(ZeZ),ᑣÿ=
+eZ),6226kᑍjrᡠx=----1—(keZ).26ூ2௃TT7T5ᵫ⚪g(x)=2sin[2(—%+—)+—]=2sin(x+—)6236l᜛e(q?)ᑣe+uvwg(஺)=2sin(e+)=[,ᓽsin(e+V)=1>0,ᡠ஺+£!,)ᦑ஺/(-?&),ᓽsinOw('!,ᵫ(sincos—+cossin—=C°S^-,ᓽcos஺-Gsin8=g,662255)cos?8+sin?8=16ᡠ100sin26+80gsine+39=0*+sin6=,-^8,.3-4/03+46“V31.ᡠ᝞஺=3-4820.᝞2ᙠ45┵M-ABC789☢/3஺,/4஺8=90°,“8=2,45=4.

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19>kEp(Ë,4)ᙠᱥAC>f=2py(,S.\PF\=6,ᵫᱥAḄg±*+|PF|=4+Í=6,+஻=4,ᡠᱥAḄ¢£V=8y.ூ2௃>@A/ḄÏ᳛Ñ*+@A/Ḅ¢£Ò="+4,y=kx+4ὶT¢£´2„᦮ᳮ+'-8Õ-32=0x=8y4(¹Ö),302%)*+×=(8k)2-4x(—32)>0)X]+Z=8Ú,ᑁ஽=-32,111111rH----------H------------=-----------------------1----------------------=------------------------------1-----------------------------IACI2|BQÇÝ+(Þ'4)2ᨴ+('4>x>+(g+4-4>^-4)2+(+4_11_11(X1+%)2—2xx2t2(6+l)x>(k2+l)xlk2+\(X]X)2½+i(X1X)222](8Z)2-2x(-32)_1k2+l_1~k2+l(-32ᡂ-^i>16-16,+22.m/(x)=-x1+x+xlnx,g(x)=-x1+inx-m(mGR).(1)g(x)éêX>1ᡂT<ëḄᨬᜧ᦮ᦪ.ூKᫀ௃প(3-2e)x->,+e2-e=0(2)3ூ᪆௃ூᑖ᪆௃(1)ᵫïᦪðñê±ò0),/'(e)=-2e+Ine+2=3-2eX/(e)=-e2+e+elne=2e-e2ᑣ/(X)ᙠ(ej(e))ᜐḄᑗA¢£

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