搜索
20155525..1.0x11fxsinsinxxxxA.B.C.D.2.20()(0)1limxfxfx,x=0fxA.B.C.D.3.x-4z=32x-y-5z=1-3,2,5A.42531xyzxB.431325xyzC.431325xyzD.325431xyz4.233()yxxydxydA3()ln||yxCxB.3()2ln||yxCxC.3()3ln||yxCxD.3()4ln||yxCx5.1(1)ln(1)nnunA.1nnu21nnuB.1nnu21nnuC.1nnu21nnuD.1nnu21nnu55256.'0()1fx000(2)(3)limln(1)xfxhfxhh.7.3300sinxaxtdtxa=.8.20,,xzexyzzzxyx.9.lnfxfxdxfx.10.2,,=,,,1,=DDfxyfxyxyfxydxdyDxfxydxdyy=0,y=x.10880..11.11cos0sinlimxxxx12.222352{,txtytedyyyxdx13.=arctanxxeedxI14.322coscosxxdx15.2232,,yzzzxfxyxyxyf16.2,,1-12xyzxyzf17.12200xdxxydy18.222222=1+sin,24yyLIxedxxeydyLxy19.01nnxn20.4681xyyyxe21020.21.0-1,1lim11,0,11.xfxfxccfxf22.1122.xxyDy=ey=e1DA2DxV.