}Ŀij@MP(x) 20 P5 װl(f)\ӆTM(sh)քe 1820181618t@ 5 \ӆTijɿe`ǣ
A.(sh) 18B. 0C.λ(sh) 18D.ƽ(sh) 18
ĿД(sh)W(xu) Դ }ͣ
}ĿRtACBУACB90cDABһc
1D1CDABCCD2ADDB
2D2ACBCEFCDHEFcBCEcACFֵ
3D3ACBCcHCDϣҡAHD45CH3DHֱӌtanACHֵ
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ĿД(sh)W(xu) Դ }ͣ
}ĿڳAεĺ(sh)W(xu)(x)҂(jng)v_(sh)ı_ʽú(sh)Dо|(zh)һһ\ú(sh)Q}ČW(xu)(x)^̣ڮ(sh)Dr҂ͨ^cƽƵķW(xu)ĺ(sh)Dͬr҂ҲW(xu)(x)˽^ֵx
Y(ji)潛(jng)vČW(xu)(x)^̣F(xin)ځQĆ}:ں(sh)(dng)
r
(dng)
r
@(sh)ı_ʽ
ڽoƽֱ(bio)ϵՈϲgķ@(sh)ĈD
֪(sh)
ĈDDʾY(ji)ĺ(sh)Dֱӌʽ
Ľ⼯
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ĿД(sh)W(xu) Դ }ͣ
}ĿD֪ABLjAOֱCDABHCDcNMCN=CAANAOcF^cFACƽоCDLcMABLcE
1CEMLjAOо
2ACCD=58AN=3AOֱLȣ
3ڣ2ėlֱӌFNLȣ
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ĿД(sh)W(xu) Դ }ͣ
}Ŀij(sh)W(xu)dȤСM(j)W(xu)(x)(sh)Ľ(jng)ͨ^бcBķ(sh) yĈDc|(zh)Mоо^Ոa
1y c x ĎM(yng)ֵ±
x | 3 | 2 | 1 | 1 | 2 | 3 | ||
y |
|
| 6 | 6 | m |
(sh) y׃ x ȡֵ m ֵ
2ڽoƽֱ(bio)ϵϱиM(yng)ֵ(bio)c(sh) yĴDԓ(sh)ăɗl|(zh)
3ͬһ(bio)ϵЮ(sh) y1x ĈD(j)Dֱӌ(dng) yy1 r׃ x ȡֵ
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ĿД(sh)W(xu) Դ }ͣ
}ĿڇHRِO(sh)AȫRBRCARĿСǺСۅԓِµ־Ը߷(w)Mί־ԸSC䵽ĿM.
1СDZ䵽AȫRĿMĸʞ .
2ØDбСǺС۱ֵͬһĿ(bio)MM־Ը(w)ĸ.
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ĿД(sh)W(xu) Դ }ͣ
}Ŀ֪(sh)y1=ĈDcһκ(sh)y2=ax+bĈDcA(1,4)cB(m,-2) .
(1)@ɂ(sh)P(gun)ϵʽ
(2)^D,ֱӌʹy1>y2׃xȡֵ.
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