<p>蓝色圈内两边的分子（把括号里的式子放到分子上）：<br>因为an恒大于零，所以an和an－1的比值必大于零。<br>所以n＋（an／an－1）＞n</p>

<p>可是答案是小于啊，所以应该是答案错了吗？</p>

<p>画蓝圈的那步小于号怎么得出来的呀，我怎么感觉是大于😢，</p><div><center class="hupu-img"  data-origin="https://i11.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_97321_w_720_h_1280_87174.jpg?x-oss-process=image/format,png"  data_url="https://i11.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_97321_w_720_h_1280_87174.jpg?x-oss-process=image/resize,w_1000/format,png"  src="https://i11.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_97321_w_720_h_1280_87174.jpg?x-oss-process=image/resize,w_600/format,jpg/quality,Q_60"  ></center></div><div><center class="hupu-img"  data-origin="https://i1.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_44604_w_720_h_1280_73961.jpg?x-oss-process=image/format,png"  data_url="https://i1.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_44604_w_720_h_1280_73961.jpg?x-oss-process=image/resize,w_1000/format,png"  src="https://i1.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_44604_w_720_h_1280_73961.jpg?x-oss-process=image/resize,w_600/format,jpg/quality,Q_60"  ></center></div>

画蓝圈的那步小于号怎么得出来的呀，我怎么感觉是大于😢，

好哥哥们求教一道级数题

路过的xy

<p>画蓝圈的那步小于号怎么得出来的呀，我怎么感觉是大于😢，</p><p><img src="https://i11.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_97321_w_720_h_1280_87174.jpg"/></p><p><img src="https://i1.hoopchina.com.cn/hupuapp/bbs/87491515922419/thread_87491515922419_20210312221244_s_44604_w_720_h_1280_73961.jpg"/></p>

虎扑体育网

全部回复