高中数学联赛模拟试题10套3

6361S={n|n22n22003n2004}SABCD2x2x1x3x2axbababA0B1C1D23axx2(a3)xa20x1x2tan(arctanx1arctanx2)aA0B1C2D44V1V221VVA12B23C1223D5A1001B1010C1011D1013683A36B37C48D499541xcosθysinθcos2θsin2θ0θπx2y214θ_____2xOy(02)(31)x_____3axlg(x220x)lg(8x6a3)0a_____4f(x)28xxcosxcos(2x)(xR)_____5k2k0212400620034006400640064006CC3C3C3ii+++++k_____6ABCDAB=7BC=4CD=5DA=6S(ab)ab=_____20F1F2lPPQlQPPQF1F2e20a01a12an+12an-1nn1,2,3,annn20(ab)xx4(2ba2)x22axb21050PABCBAPCAPBPACQBAC60111BPPCPQ+=PABC50ab2bax1x−1axb+−f(a,b)a23abb250kka1,a2,,akkx1,x2,,xk|xi|2(i1,2,,k)|x1||x2||xk|02003x1a1x2a2xkak1C2C3B4A5D6C125[,][,]6336ππππ∪21565±31631(,)62−−4152004622101(,1)2e∈a2n2n+22n3a2n+132n+12n4(a,b)(2l1,l2l1)(∀lZ)1PCPAPCPAPBPQ⋅+=BPC120(1)kmin7