第二题怎么做，求解，谢谢！_百度知道
第二题怎么做，求解，谢谢！
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2、club4、night5、entrance
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出门在外也不愁怎么做，求解，谢谢_百度知道
怎么做，求解，谢谢
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出门在外也不愁图中的第二题怎么做，求解，谢谢。&
落落为君9206
bhuyjytiuijtyityyyyyyyyyyyyyuuuuuuuuuuuuuuuuuuuuuuu
an=1/(2n-1)(2n+1)=(1/2)[1/(2n-1)-1/(2n+1)]
an=1/((2n-1)(2n+1))=1/2(1/(2n-1)-1/(2n+1))。这样计算第三问也简单了。把1/2提出来，里面的是可以相互抵消的。就剩下最后的1/2（1-1/201）。
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扫描下载二维码到达这一步了，怎么做，输入网址没反应，求解，谢谢，另外，群号是多少？ - 开源中国社区
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[INFO] Installing D:\workspace\eclipse\FirstKoala\FirstKoala-application\target\FirstKoala-application-1.0.0-SNAPSHOT.jar to d:\work\com\zcq\FirstKoala-application\1.0.0-SNAPSHOT\FirstKoala-application-1.0.0-SNAPSHOT.jar
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[INFO] Building war: D:\workspace\eclipse\FirstKoala\FirstKoala-web\target\FirstKoala-web-1.0.0-SNAPSHOT.war
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[INFO] --- maven-install-plugin:2.4:install (default-install) @ FirstKoala-web ---
[INFO] Installing D:\workspace\eclipse\FirstKoala\FirstKoala-web\target\FirstKoala-web-1.0.0-SNAPSHOT.war to d:\work\com\zcq\FirstKoala-web\1.0.0-SNAPSHOT\FirstKoala-web-1.0.0-SNAPSHOT.war
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[INFO] Reactor Summary:
[INFO] FirstKoala ........................................ SUCCESS [01:12 min]
[INFO] FirstKoala-conf ................................... SUCCESS [01:01 min]
[INFO] FirstKoala-core ................................... SUCCESS [ &1.525 s]
[INFO] FirstKoala-application ............................ SUCCESS [ &2.644 s]
[INFO] FirstKoala-infra .................................. SUCCESS [ &0.358 s]
[INFO] FirstKoala-applicationImpl ........................ SUCCESS [ &2.048 s]
[INFO] FirstKoala-web .................................... SUCCESS [01:57 min]
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[INFO] BUILD SUCCESS
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[INFO] Total time: 04:20 min
[INFO] Finished at: T11:13:21+08:00
[INFO] Final Memory: 13M/41M
[INFO] ------------------------------------------------------------------------
共有4个答案
<span class="a_vote_num" id="a_vote_num_
好的，搜索了，加了，没反应。。。你能给我推荐一下maven吗？第一次在开源社区发帖，谢谢。
<span class="a_vote_num" id="a_vote_num_
osc是不允许公开群号的，你QQ群搜索koala第一个便是
<span class="a_vote_num" id="a_vote_num_
进入web模块，运行mvn jetty:run
<span class="a_vote_num" id="a_vote_num_
建议学一下maven
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