08 等差数列中的中项性质 等差数列 高中数学
Synopsis
08 等差数列中的中项性质等差数列高中数学.
![[數列級數][等差級數和中項的比例]](https://i.ytimg.com/vi/ZagZCGQd_8A/hq720.jpg?sqp=-oaymwE2CNAFEJQDSFXyq4qpAygIARUAAIhCGAFwAcABBvABAfgB1AaAAuADigIMCAAQARhlIF0oWDAP&rs=AOn4CLAO9Pl3iJ6Xrezj11iz9akMrF0evQ)
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