河北省石家庄2013届高三一模数学文答案含答案

学必求其心得，业必贵于专精2013年高中毕业班第一次模拟考试1—5DCBCA6—10CACAB11—12DB1-5DBCBA6-10BABAC11-12DC131143523615616.3722417( )(2cb)cosAacosB:(2sinCsinB)cosAsinAcosB22sinCcosAsinBcosAsinAcosBsin(BA)ABC,sin(AB)sinC2sinCcosAsinCsinC024,cosA,4.20AA6( )(2cb)cosAacosB(2cb)b2c2a2aa2c2b222bc2ac:b2c2a22bccosAb2c2a2242bc260A,A4( )ABCS=1bcsinA=12学必求其心得，业必贵于专精bc=228a2b2c22bccosAa=2,Pc2b2=610b2Ac2bc2212OD18(ABCADC90,ADAB,BACRtABCRtADC2CBO=DO,ABDABADABDACBD4PAABCDPABDPAACA,BDPAC,BDPBDPACPBD.6(RtABCAB1BAC60BC3SABD1ABADsin120021113=38224SBCD1BCCDsin60021333=33,10224VDABP=1SABDPASABD112ABD3VPVBPCDVPBCD1SBCDPASBCD3319)60x,750x100304:x22560225学必求其心得，业必贵于专精.6606060401007030100130702008K2200(60304070)22002.1982.70610100100130709190%“”1220.AF1AF2BF1BF22aABC4aABF2,AF2BF2AF1BF1F1F2AB22ccos3004a3ec34a3)A(x1,y1)B(x,y)0e51c1a15.62222AB与x1y22b4OAOBb4a2b21,ya2x1x2y1y21a22325a43a21=(a2)4a235,OAOB0,a2a22AOB8ABxAByk(x1)学必求其心得，业必贵于专精x2y21a22b:(b2a2k2)x22k2a2xa2k2a2b20x1x22a2k2x1x2a2k2a2b2222222bakbakOAOBx1x2y1y2xxyy2xxk2(x1)(x1)1211212x1x2(1222k)k(x1x2)k(a2k2a2b2)(1k2)2a2k4k2(b2a2k2)b2a2k2k2(a2b2a2b2)a2b2222bakk2(a43a21)a2b2b2a2k210m(a)a43a21m(a)021( )a1,f(x)exx1f(1)ef(x)ex1f(1)e1f(x)(1,f(1))ye(e1)(x1)y(e1)x12xyA,Bx0y1y0x1A(1,0)B(0,1)e1e1111S△OABe1122(e1)(1,f(1))142(e1)(f(x)≥x2a≥1x2exxh(x)1x2ex1xexxxxh(x)1ex(x1)(x1)(x1ex)1x2x2x2k(x)x1ex,6k(x)1ex,学必求其心得，业必贵于专精x(0,1)k(x)1ex0k(x)x(0,1)k(x)k(0)08x10,x20h(x)(x1)(x21ex)0xh(x)x(0,1)10h(x)h(1)2ea≥2e1222.:)BADBMFAQMB3PAPBPMPQ5PAPBPCPDPCPDPMPQ,CPQMPDCPQ~MPD7PCQPMD,DCBFMD8BADBCDBMDBMFDMF2BAD,BOD2BADBMDBOD.1023.:)2sin2cos3y2xC1:y2x.5学必求其心得，业必贵于专精x22t(2y2x2t2t22t407t1t22,t1t24ABt1t2(2)24(4)3210)ly2xy2xy2x:x25x4070,x1x25x1x24AB1k2x1x22(5244)321024.x2x7x22x2331x2x2x2x23x112x22x3x3

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