河南省洛阳市2016-2017学年高一下学期期中考试数学

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-1-201620176012560..1.sin15cos15A.14B.12C.32D.342.x2,1Mtan4A.13B.13C.3D.-33.,ab1,2ab,ab232abaA.1B.3C.-1D.-34.cos22cosfxxxA.1,3B.2,2C.3,32D.3,125.A.220ababB.ababC.00aaD.//abab6.A.sincosyxxB.22sin3cosyxxC.cosyxD.3sincos22xxy7.,ababababaA.34B.3C.4D.68.cosyxx-2-9.2sin20fxx,02fx,46A.-1B.3C.12D.3210.1,2ab,ab45,cabdabcdA.55B.55C.1D.-111.2sin04fxx4ygxygx,63A.3B.2C.32D.5412.ABCA,B,Ca,b,c112tantanBCtantantanABCA.4B.33C.63D.8904520.13.9115sintancos462.14.ABCA,B,Ca,b,csinsinsin2CBAAABC.15.ABAC90,2,1,,ABACAMABACr0AMBC,.16.RsinfxAx32fxfx34fxyfx3yfxRyfx-3-3,04yfx30,2yfx32xkkZ.670..17.101sincos5.1sincos25sincos201712cos2coscos2.18.123,2,2,1,3,1,.ABACADR1ABACAD2ABACAD.19.12tan3.1tan222sin2sinsincoscos21.20.12ABCA,B,Ca,b,c.2cos,2cos,cos,cos2222AAAAmn22,2.2mnnABAC1A2AChABAh,ABC.21.123sincos0,0fxxxxRfxfxyfx.21yfx-4-24yfxfx.22.12BCABCABCPQRS.BCaaABC,ABC1SPQRS2S.1,a12,SS;221SS.-5--6--7-

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