湖南省长沙市2023届高三上学期入学摸底考试数学试题及答案

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2023
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20x+2=0,\x=-2,,/ஹdAGVcᡠuPQឤ>?(-2,0<0,U=0,22.ᦪ/(x)=alnx-xj(eᯠ8ᦪḄᦪ).(1),`(0<%<%)ᦪx=/(%)Ḅ:;<2/]2(2)¡“=2£8V¥>0,¦Cy=§]}2¨¦>=/(x)©ᨵ«]Ḅ¬ᐳ./ᦪ®Ḅ¯1±.ூCᫀ௃(1):;FG᪆(2)[41n2-3,+oo)ூG᪆௃ூᑖ᪆௃(1)Kl2=´|,ᑣbµ¶·¸ᓄ(:;2/lnf—ln/—f+lு0,᪀⌼ᦪh(t)=2tint-lnr-Z+1,ᑭᵨÃᦪᓽ·.G2(2)ᵫ⚪·¸ᓄ(TUÄ2+2£-Å=§ᨵ«]G᪀⌼ᦪg(x)=Ax2+21nx—x,x>0,.AÃᦪÇÈeḄ±.G.ூgh1iG௃Ä⚪É%(0<%%>0ᡠu>1,X.xtxInta1t-17}tÊ(஻=----=——=---------,ᡠulux.=---,—=---=---,In%]lnxln%[+InfZ-lxln%[Inr2xbµ¶]<24-஽=]<2᝞-x,=]<2p-1஺ᓃ!<21-1,InÑ21In%11Inx,IntÊ(f>l,ᡠ:bµ¶ᓽ2fln"lnf-f+l>0.Kp஺)=2/1Ô-lnf-f+1,ᡠu஻'(7)=21Ô+2-:]1,dg(f)=஻'(/),71ᑣg'(f)=:+j>0,ᡠu"(/)ᙠ(1,+8)eØᦪ஻'(/)>஻'(1)=0,ᡠu஻(/)ᙠ(1,+8)eØᦪ3)>஻প=0,ᓽ2tlnf—Inj+1>0,ÚÛᡠ:bµ¶ᡂR.

21ூgh2iG௃Ê(¦஺?=§-2¨¦x=/q)ᨵ«]Ḅ¬ᐳᡠuTUm-Ax?-21nx-xᨵ«]GᓽTUfee?+21nx-x=mᨵ«]G,dg(x)=A%2+21n%_x,xு0,ᡠug(x)=2fcc+2_]=2"-ß+2,XX¡1—16Y0,â£g'(x)lo,ᦪy=g(x)ᓫä⌴Ø,16᧕8q)¨᜛=▬ᨵèᨵ]éê⚪É2¡1]16᝕>0,0ீ¥ீ-1-£2A^]%+2=0ᨵ᪷᪷ïS(1>8,᪷ï'(!>16,162kk᪷]ᜧ4,]g4,ñ£ᦪg(x)ᐜØóônØõᙠ]᩽ᜧ1S]᩽g1⌕økx1+21m]ù§ᨵ«]/ᦪ᪷ᑣmᜧ᩽ᜧ1ᡈg᩽g1.û43(᩽ᜧ1ᑣ`<4,ᑣg(%3)=ü+21n%3-ᓃ<§ឤᡂRý2Ax2-x+2=0,ᓽ2Ax2=x-2,33ᑣ᩽ᜧ1gmஹ3o=}2+21þ]⌨=~x3-2-X+21nx=21nx3-gw-1,33218’(ᓃ)=5(<4),ᡠg”3)>0"g(X3)ᙠ(°"4)%ᓫ'⌴)"g(/)4,8i]g(xj=<+2=4.4>஻?"@2Ax1+2=0,1/ஹ1X21ᡠ21119—.41ு-ឤᡂG"H஻xj=21nx4—x-1,@6J=----—422ᓃ2211ᡠ.4>4K"-----<0,ᡠ஻L4)=21M4y41ᓫ'⌴O"Pᨬ56"R422ᡠSTᙠ-"UV21nx4-g%—1ு-ឤᡂG•

22YZ᪷\ᜧ^4,_ᜩ᩽ᜧ67"%>4,ᑣaᳮcV஻(%)=21nx5-2.5-1ᓫ'⌴O"ᡠ/?(x)-ឤᡂG.g%"⌕UiV%>0,klC:y=--o2pkl.=/(x)\ᨵrḄtᐳ7"-Ḅv6x[41n2-3,+8).ூ7{௃ᐵ~77{⚪ὃᦪSḄ7⚪"⚪Ḅᐵ~⚪ᓄ2/ln/-ln/-/+l>0,Ax?+2hu—x=-ᨵr"᪀⌼ᦪ.

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