2021屆上海市寶山區(qū)高三一模數(shù)學Word版(附簡析)

一.45A(,3)B(4,)，ABy6x21（izziz1ab，a與b1(2x)6xx02xy0z2xyx、yxy303cos2xsinx0]9(x)0x1f(x)logxf()f24{x}nNSx1SnSn*nnn6(x)asin2xbcos2x,R（abf0b1，f(x)①當a②當a)41b0，f(2x)x331f(,2)3③當a④當a，b，b21()fxtt[,]tR()t（4(t)(t)(t)22；Nf(x)g(x)、N()()fxgxx000a1xf(x)與g(x)在NP(f,g)f(x)(x)x3a0與g2(x)g(x)NP(f,g)與在{}aab知f0nb1，b1bnN*，n504[a][a]（a01n100n去掉b}bmmN*bm（2ntt二.453y10x）(3,1)(3,1)(1,3)(1,3)(x)sin(x)x,R0f（）從9這554）1357）|x1x、y4(x1)(y1)9|xy1|x1x、y4(x1)(y1)7|xy1|x14(x1)(y1)9x、y|xy1|x14(x1)(y1)9x、y|xy1三.524，，ABCDABCDT為DD11111BC2，AA6.1TCABCDCATC.11m(x)xmR.f（x1m1f(x)1f(x1)；xyf(x)3m.(x)sin(x)0，2f(x)f（22.、2f(B)3f(C)2f()f(B)f(C)f()ABC，且三邊a、b、c222bf(BC)A、B、C.cx2:y1M為.F、F2412(1,m)m0（FMF1M23M(0,1)y（kRA、B，5MAMB）如圖，設點M(s,t)，過坐標原點OMxsyt:()()r222r？0r1|srP、QOP、2|kk果kkOP||OQ|5sec1212.{x}:xx、、、xxtx0，inN3，、，nx*12ni1iin1in1t0{}P(t)x.n1{x}()Ptt2nn1|xx||xx||xx|t22132n1ni*3112，inta2|at2||at2|（、nN，ni1iia}(2)Ptn{y}:y、y、、Py、y、y(1)12n12nAANAn.、y*n參考答案一.3245(4,3)x1iarccos160412二.CBCA三.12421））.7）(,0)(1,)）[.）1，0332）m，S.21a}P(t2)）110）t）.2n{x}:xx、、、xxtx0，inN3，、，nx*12ni1iin1in1t0{}P(t)x.n1{x}()Ptt2nn1|xx||xx||xx|t22132n1ni*3112，inta2|at2||at2|（、nN，ni1iia}(2)Ptn{y}:y、y、、Py、y、y(1)12n12nAANAn.、y*n參考答案一.3245(4,3)x1iarccos1