• 2022-06-19
    证明[tex=3.143x2.786]uxDza9E1eN/oNoo9UNLw6A+q4Ij1/j2NcI71hTQsMJ2mXARluTEY94dlImWV+zEw[/tex]当[tex=2.214x1.286]WIPgb+0PCW2GpNxXIF7/ng==[/tex]时收敛,当[tex=2.214x1.286]ASZmUG10I4b9y9qp7J+AYZtArZbevhNbISDvqCFBj9Q=[/tex]是发散。
  • 举一反三