当选择怎样的系数a与b时,量[tex=8.286x1.357]yI8C/mxoJsnbyj6jgsgvslpfFHIop/04DtXTT5H4UiI=[/tex]对于x为5阶无穷小?
解[tex=37.786x5.929]Ck4j1YFlvVH5wCAykOEMiybGyrcCDxp2XKPuQnB8NQkHCmdFKbcmDW469A5vgO8GGPrrOlNDAOY4wWaNK6t6+7wa3zpYIvN0bdVGyqLchWn4rvT6wZCZ06lnShwCS4K4i87rgQD6WE8iQkLDkIhQjU8HNigWsIvhHp0IB8ovJHvjhnSTHJq7v4JNdHnrCev2KbAkvzYGLDldXKopwwNE52n5aTpAeEmS2aLCI2rfD/MX0q6tudSrMpFCw2vJtMEYP1QnOYeK4g1m+dgJk/VSEp041KL5ZWEGvV4RpRuYp4SvtXE1knBiGiEgdxvM56PSP+RnfJLPBxn7VbbsRQW9MYfLZ4o0RFuSqZm22GpbQiSkMX8lKR719BXNBbf5b+5ZI4GLWdlYi1iR9TfHoMjJ9BI9PdAivzshnT7BFt+65kWAWqyuiadYWRqbpt7Bb0/5NBayTkS++MdMztuM5WafkQ==[/tex]要此量对于x为5阶无穷小，当且仅当[tex=6.429x3.929]fnpmC2J6JmQBLyo5NmGAz3vbsl+FSV5UZ9BSxlwGXoxgDh4O2+84R4K3/obpU6GVMaVdMu1P8rv99s/WgyxEPqp+9pLCcxVqSI74C9O2xr1ik6RKT5xDCM6YIjtrvwWn[/tex]解之,得[tex=7.214x2.357]2k/1MFRuqALc4QxxjGFRXrectV7yp+eLIgOJMkTnsmQr6lOeU6LrI8QvRhO3nPYb[/tex]
举一反三
- 【计算题】当 时,下列无穷小量与 x 相比,是什么阶的无穷小量 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) (5.0分)
- 当x→1时，1-x与[tex=2.786x1.357]6xNWsvgODcWMVnPmhQgGCg==[/tex]是同阶无穷小还是等价无穷小？
- 当x→1时，1-x与[tex=4.071x2.357]ff+y91TpUe5R4u24z8WQa8RjXIDaJn8vmhSpjmkDQas=[/tex]是同阶无穷小还是等价无穷小？
- 下列各题中的无穷小量是等价无穷小、同阶等穷小、还是高阶无穷小?[tex=2.571x2.429]1KzBl76Rbpt0ZDfjuyvEySBpLlH81yt/ocMQjopZp64=[/tex]与[tex=6.143x1.429]gZvTEiEYJ4a287n3LtrCUsupTRs98rw4+P+fuIS6bTg=[/tex]
- 判断下列无穷小量是等价无穷小、同阶无穷小、还是高阶无穷小？[tex=4.071x1.357]Ytv1F3VCRp1CmV2Z7hoO3A==[/tex]与[tex=4.0x1.357]Ygec97y5ehoG5Y96pK9UkmTSQd/iqD68zW2rjwUf7DE=[/tex]
内容
- 0
当x=-1,1,2时，f(x)=-3,0,4，则f(x)的牛顿插值公式的第三项系数为？ A: 3/2 B: 5/2 C: 5/6 D: 5/8
- 1
判断下列无穷小量是等价无穷小、同阶无穷小、还是高阶无穷小？[tex=8.286x1.571]sX8d+twXyglG56PaRqTA1ASTfldg5A/SHzGFsRtSdY4=[/tex] 与 [tex=5.286x2.357]LPNgIfSpSvzTpeCN4Iyxyii5O2irz5ET/ZX8j6h/wHimhHq1ZhuZTLQvuLWkisj2[/tex]
- 2
设x→0时，excosx2-ex与xn是同阶无穷小，则n为()． A: 5 B: 4 C: 1 D: 2
- 3
已有定义语句：int x=6,y=4,z=5;,执行以下语句if(x A: x=4,y=5,z=6 B: x=5,y=6,z=4 C: x=4,y=6,z=6 D: x=4,y=5,z=5
- 4
已有定义语句:int x=6,y=4,z=5;,执行以下语句后,能正确表示x,y,z值的选项是( )。if(x<;y) z=x;x=y;y=z; A: x=4,y=5,z=6 B: x=6,y=4,z=5 C: x=4,y=5,z=5 D: x=5,y=6,z=4