0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?

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0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?an=1

0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?
0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?

0,+1/2,+0,+1/4,+0,+1/6+求出极限+an=?
an=1/(2n)(1+(-1)^n),好像不收敛

你他妈的有病啊！这是人该做的问题吗？

没有输错？？

发散 不收敛 无极限

估计你抄错题了

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