2022-2023学年高三上学期9月入学考试数学试题（答案解析）

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13?1B᪷)ᦣmfᑨ°ã=஺+ᮞrB=c-d'?c,dᙳFᜧl0ḄêᦪBëì〉îïF׽ؿᦪyrÒÓðḄᜩᦪxḄñòóôõ¥?ö{ᑨ°ᓽ÷øùoᳮᵫB|ú᪷)Ü⊤Ḅᦪ){ñòóô|?2BûḼýÌḄþÿᕒᢗᐭḄẆ2ᨴ20ᙠᜧ᪶⏚ᕈ▢ឋ"□ឋᑣ%&'()ᐸCT-ᱏᐹᨵ123456789:;<Ḅᐵ>2ᨴ20?@ABCᦈ:1000G⊈I᪵KᎷMNG᪵KḄOPQR□ឋSR▢ឋTRUVWXḄYNG᪵KR□ឋ᪵KḄᭆ᳛\0.7,᪶⏚`ᑺbc□ឋ᪵K□ឋPQḄᭆ᳛R0.99"᪶⏚ᙠ□ឋ᪵KeᩭḄg(ehc▢ឋᕈ□ឋ'i51000G᪵KAᕈ□ឋḄGᦪḄkl.mὃᦪo:77WXyG)□10஺54/=|r=l62.141.54235350.123.47I7ᐸAv=/gy.,W=—}ᔩmὃ:6ᦪo"4,%'W',""“'ᐸ=&+Ḅ᳛2Z4v—riuwḄᨬᑖ\6=[------a=w-^u.92—2/Uj-mTi=\ூᑖ᪆௃"1'᪷oᦣ¡¢⌱¤¥¦§ᯠ©ªᐭᦪoi¤¥"2'«□ឋᭆ᳛,ᯠ©i¬Ḅᑖ®ᦪ¯kl.ூ°᪆௃°±"1'ᵫᦣ¡¢³⌱´µ=஺"1ᵫy=c-dx¶·¸¹º»ᵨᦪ/gy=/gc+/g஻x,M/gy=w,w=lgc+lgd-x,7«Á=4,ᑓ=1.54,ZxÄ=140,1=17Z%v-Ixw50.12-7x4x1.5473=------—=0.25,140-7X4228i=\Ige=w-lgdx=1.54-0.25x4=0.54,/.vv=0.54+0.25x,yᐵxḄ¤¥\±y=3.47x10025v,"2'M51000G᪵KAᕈ□ឋḄGᦪ\X,ᑣNG□ឋḄᭆ᳛P=0.7x0.99=0.693,

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1522.(wx⚪zᑖ12ᑖ){|(jOusinx+G?-].(1)}4=,~Iᦪ/(X)ᙠRᓫ⌴t6(2)/(x)ᨵZ2IaḄ.ூᑖ᪆௃(1)}஺=,~I/(x)=sinx+-x3-x,ᑖGf'(x),/"(x),f"\x),ᔠ(0)=0,66r(o)=oᑨ(%)..(o)=oឤᡂLIᓽ)t(2)ᐜᑨ|(X).᜻ᦪI/(0)=0,◤/(x)ᙠ(0,+oo)2Iᵫ(1)sinx-xு-13,6/(*)>3-4)/..0,4ᔠ⚪I¡¢%0,00~If'\x)>0,ᡠ¥r(x)=cosx+gx2—lᙠ(-oo,0)ᓫ⌴ªIᙠ(0,+oo)ᓫ⌴I_((0)=0,ᡠ¥f'(x)..f'(0)=0,ᡠ¥f(x)=sinx+L3—xᙠRᓫ⌴t6(2)W/(-x)=-sinx-ax34-x=-(sinx+ax3-x)=-/(%),ᡠ¥/(x).᜻ᦪI/(0)=0,/(%)ᨵZ2Iᑣ◤/(X)ᙠ(0,+a))2Iᵫ(])I}x>0~I/(%)>/(0)=0,ᦑsinx—x>—!■/,6¯ᑣa4~I/(%)2Iᔠ⚪t66}&0~,/'(X)=cosx+3ax2-lBlfcosx-10,ᦑ/(°)ᙠ(0,+oo)ᓫ⌴ªIᑣ/஺)0,ᦑ§ᙠ´ZX஺e(0,µ)I¶)f'"(x)=0,0ᡠ¥/"(x)ᙠ(0,x0)ᓫ⌴ªIᙠ(.I/ᓫ⌴I}xe(0,x°)~I(x)ீ(0)=0,)(x)ᓫ⌴ª,

16ᡠ¥/,(x)0,1)x>ᓽA>_^eN*~I/(x)>0,ᵫ2§ᙠᳮI/(x)ᙠ(I+8)¹º§ᙠZ2I»ᔠ⚪.¼ᡠ½IaḄ.(-8,+/)•

17