2023届安徽省天长市关塘高考数学全真模拟密押卷含解析

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2023
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173)=ஹ4-&ᕲᦈ,/=0,1,2,3,4,XḄᑖᑡ᝞+,X0123416322481P8?8?8?8?810ᔆ/ஹ1x32+2x24+3x8+4x14ᦑᵨᡝ81=3ூ56௃7⚪ὃ᪷;<=>?ᦪ@ᦪ%?AᦣCDEFᑖᑡ%᪷;ᑖᑡ?GH%ᐵJᙠLMN?ᭆ᳛%OPMNQRS⚗ᑖUL⚪PVWᑮYZ[\Ḅ]ᵨ.320.஺>-4ூ᪆௃bcdedfLg#9ᙠ(0,1ឤᡂj%k%=/%/(஺=*+ᓃ?ᙠqḄᨬstu஺Ḅ"tw.ூ௃(11Axl+2*+4”a>0ᙠ£(஺,1zឤᡂj%ᦑ஺>#{+|ᙠ(0,1ឤᡂj.142)k%=?%ᵫxe(O,lreg,lஹ1ஹ3k/=+te-J,J/-,1qḄᦪ%ᦑ஻%n=+“3ᦑQ>——43ᦑᫀ,a>4ூ56௃⚪ὃᦪḄcdeḄឤᡂj%UL7⚪%ᐜὃ⇋FᑖA%ឤᡂj⚪ᓄcᦪḄᦪḄᨬt⚪%⚪LẠ⚪.21.(1)2;(2)᪆.

18ூ
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௃(1)g(%)=xsinx+cosx,/.g'(x)=xcosx,,/00,xcosx>0,g'(x)>0,ᑣᦪy=g(x)ᙠ(஺ᔁ)qᓫ⌴°×z%cosx<0,xcosx<0,g'(x)<0,ᑣᦪy=g(x)ᙠÜLÝJqᓫ⌴ß°×z%cosx>0,xcosx>0,g'(x)>0,ᑣᦪy=g(x)ᙠ15■a"qᓫ⌴.Qg(0)=l>0,gᙍ=3>0,gW)=T<0,gÜå=æ<0,g(2;r)=1>0.ᡠè%ᦪy=g(x)ᙠ(0é)§êë)c¬ᙠ«5%ᙠ¡é,ᐔ@1þ%2ô)qᔜ¬ᙠ#ï«5.íqᡠî%ᦪy=g(x)ᙠ¡(0,2%)qḄ«5Ḅïᦪ2°(2)•.•s)=",/%(x)=sinx;cosx=q.XXXᵫ(1)%g(x)=xsinx+cosxᙠ¡ᐔ§(×%27)q¬ᙠ«5%ᡠè%ᦪy=/(x)ᙠ¡é,ô)§(3,2ô)qᔜ¬ᙠ#ï᩽t5Ðஹ.(2%ºÿ)”(2)º»¼g(ö)=0ᓽx.sin%+cos%=0(z=l,2),—S#tan÷%Xi(ஹCOSX.COS%•.•••J(᳝)+/(*2)=+-=sin%Sinx,2X\X2

19ᐔ3ᐔ11Xᓽtan%>-tan2tanxtsin(x஻)=~sinw2sin%1+sinx>0,ᓽ/(%,)+/(x)<0.22ூ78௃:⚪ὃ=ᑭᵨ@ᦪẆCDᦪḄF7GᦪH⚪IJKὃ=Lᑭᵨ@ᦪMNOPQὃ=ᑖ᪆H⚪TUVH⚪ḄWXYZ[⚪.f137122.(1)1%|`ᡈ“…(2,dU᪆ூ
᪆௃(1)᪷f/(x)=|2x+5|-x-g,ᑭᵨF7ᑖghUOPQᡈijDᦪf(x)ḄklᑭᵨDᦪḄklUOPQm44(2)ᵫ(1)ijḄDᦪklojf(x)Ḅᨬqrs-3,tuv=—3,wᐭ------+------="+஺{ᯠ}~PQa-mbb-maIG+6,)4a+4bᑏᡂ(a+3b)+(3a+}ᓄ)ᵨᙳrOPQtMN.ூ
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20!o5τU0ᵫ/(x)=|2x+5|-x--=<3+],-2cx<,,/(x)᝞):ᵫ/ḄU[x|-ᡈx…-011522(2)ᵫ/(x)=|2x+5|__(3%+|-51—<%<—,22111XH---,X...-,22ᡠ/(ᙠ1-<ᓫ⌴
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21