• 2022-05-27
    证明:如果a和b满足[tex=1.857x1.357]k2apS1ncOt5sTo0qFsUUDg==[/tex],那么对任意正整数k,[tex=2.643x1.5]afM7uOgDuVM+CjWP06l7DN3bj4Ru5agVVRI7ODtDJRs=[/tex]
  • 举一反三