陕西022-2023学年高三上学期期初联考文科数学试卷及答案

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1421.(I)y2=4x(2)opq/᪆ூᑖ᪆௃(1)ᵫÙᱥÛḄÜÝᯖḄᙶ᪗*áÛÜÝᵫ1=4*ÙᱥÛḄឋãMḄäᙶ᪗ᵫ/Ḅ/=120஺.MḄåᙶ᪗æMḄᙶ᪗çᐭÙᱥÛḄÜÝ஺Ḅ±éêÙᱥÛḄÜÝ(2)ᵫ⚪ëÛA3Ḅì᳛V70,íëÛA3ḄÜÝîÙᱥÛὶ½Ñ᪷ð*Ñ᪷ðñᦪòñ᝞ᑗᱏḄ⊤÷øᵫᦪòñ70ùᦪḄᐵûçᐭëÛA3ḄÜÝëÛឤQ.(1)/8ᵫ|EM|=4,NOFM=120஺M+2,±2G),ᐭC:12=2p4+2)=p2+4p.஻=2ᡈ஻=-6()ᡠᱥḄ/=4x.(2):ᵫ⚪%&<2(1,2),(48Ḅ*᳛,0,.(A8Ḅ*=1+2,.&,4),5672)y2=4xᵫீG72:41:4஻=0,;0,x=my+nfy.+y=4m9ᑣ4.ᡠB+/=W(X+%)+2஻=4F2+2஻Xj%=(H+ti)(my+ii)=ntyy+mn^y+y)+n2=n2,22x2x2^QAIQB,UUL1LU.•0.08=(%-1)(஽_1)+3_2)(%_2)=0,ᦑ&O:(%+P)+1+QRߟ2(4+%)+4=0,᦮ᳮA?:4V:6஻:8V+5=0.ᓽ(-3)2=40+1)2,

15;<஻-3=2(F+1)ᡈ஻-3=-2(F+1),ᓽ஻=2"+5ᡈ"=-2m+1.Z஻=-2%+1,ᑣ[=1+஻=1-2V+1=«(7-2)+1,]^_(1,2),`஺_bᔠ,dᔠeZ஻=2m+5,ᑣx=my+"=f+2“+5=F()+2)+5,]^_(5,—2).gh(A8]ij஺_Ḅ^_(5,-2).jr-jr22.পlM᩽ᙶ᪗᜛2-20COS஺-2Psin8=3,(qḄ᩽ᙶ᪗஺=r+asae(03).(2)40.ூᑖ᪆௃(1)✌ᐜzMஹ4ᓄ}~ᵨlM`(4Ḅ᩽ᙶ᪗ᨬᵫᚖ(ᑏ4Ḅ᩽ᙶ᪗.(2)ᵫ⚪.+|CD|2=2(\OA(+\OBf+|OC+|OD)ᨴ=|OB|,஽=||,+q=|OA|,q=|OC|,ὶ(1)ᡠ᩽ᙶ᪗ᔠ^ᳮᓽ&.(1)ᵫ஻Ḅᦪ,M(x-l)2+(y-l)2=5,BPx2+y2-2x-2y=3,p2-2pcos^-2psin^=3.ᵫ⚪.47=1᜛ᦑ4Ḅ᩽ᙶ᪗᜛=a,rrJT•••4e=1+asae(0,e).(2)ᵫ⚪.|AB|2+|BC|2+|C£>|2+\DAf=2(|<9A|2+|O+|OC+|஺)Zg=|OBI,=|O஺|,p=\OA\,p,=\OC\,3"¡+QὶK4LM8{2,&g+02=2(cosa-sina),p,p=-3,2p1-2p(cos0+sin^)-3=0\0—aὶxJiLM812c/.4°£&᜛3+P4=2(sina+cosa),p3Pஹ=-3,n¤᜛:22(cosO+sin஺)-3=0\O^+|OB|2+|OC|2+|OD|2=g+p)2-2+(+p)2-2=20.2PlAA4AA

16AB2+BC2+CD2+DA2=40.23.(1)0,ge(2)(-8,-2)u¨e,+8).ூᑖ᪆௃(1)ᑖxW-2ஹ-2I«¬®,¯/(x)<4,gᔠ&,¯/(x)44Ḅ°e(2)ᑖ᪆&h±1,2]³4>/—3µ+2ᡈ4<-/+[-2ᡂᑭᵨ¸¹ºᦪḄ»¼ឋ¾&¿ᦪ஺ḄÀÂ.ூÃ௃পÄ஺=2Å/(x)=|x+2|+2|x-l|.ÄxW—2Å/(x)=—Æ:2—2x+2W4,xW—ÇÅxe0eÄ:2lÅf(x)=x+2+2x—2V4,ÊᓃÅIx2-2x+2^x+a<-x2+2x-2,ᓽÐᙠxw[l,2],³஻>f-3¡+2ᡈa<-Ô+x-2.a>x2—3x+2=^x——eÍX£[12]ᡠ——3x+2N—,ᑣa<-x2+x-2=-^x-^Íxe[l,2],ᡠ—/+x—2M-2,ᡠa<-2,ÍÇ¿ᦪ”ḄÀÂ(-8,-2)U(-gᵨ