用根值审敛法判定级数的收敛性：[tex=6.5x2.714]ySadpvq7BrEZCGdcnD6+aRao+oRkscj2JjXLUA8kt/wy1tEqdrft9wqZ0Ux8dfb53mIPzz12EJJSX0V9ghycYg==[/tex].
举一反三
- 用根值审敛法判定下列级数的收敛性：[tex=6.214x3.286]eo4+Or2nRjPO1XMeI9CVMJ7GEiDEt107EZskK2tDLgBjgfuQ1wfAen6AR0Bv05RWsMPNaSjMakmyOKg/LdK6qg==[/tex]
- 用根值审敛法判别级数的收敛性：[tex=6.071x3.5]VCAPAvn3gOPyP36rvxBwzxqmjWwHH2aQBF3gJhZ9v5q3rRU2NfAiKkIRyksybp4x[/tex] .
- 用根值审敛法判别下列级数的收敛性：[tex=4.5x3.286]3PXegz5bAQsuTODB0U8KrBPLieHr48gEJxEWqW1OcNyx+4Jj6vOqAMG47dd3qXIc[/tex]
- 用根值审敛法判别下列级数的收敛性:[tex=5.571x3.286]3PXegz5bAQsuTODB0U8KrNJW68S9ebQACb1ASRfInEpoes7VJIwkv41VxK30zSJ0[/tex]
- 用根值审敛法判别级数的收敛性：[tex=6.214x3.286]VCAPAvn3gOPyP36rvxBwz0jGDQNT9u5ts/fZvZDorFifVsoWC8NClkyHW5rSKwuw8C9gYg94rwye/b9udKMRxw==[/tex] .