# [其他] Del~~

## Del~~

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Del~~~

[ 本帖最後由 davidbat2004 於 2017-10-8 12:31 AM 編輯 ]

 ppresent 一星級會員 帖子61 積分66 金幣0  註冊時間2015-9-12  發短消息 加為好友 2# 大 中 小 發表於 2017-10-6 10:52 PM  只看該作者     1. I think a person who knows how to do differerntiation can spell "derivative" correctly, at least way better than "deverative". 2. For the second derivative to equal zero, you would have 10xy=3 and x=0.3/y. Just plug this into ln(5y)=5xy you can find y and so is x. If you plot the curve you would see that it is an inflection point.實用相關搜尋: OU .postmorevideochannel{margin-top:10px;display:block; width:160px; height:30px; background:url('/images/video_channel_more.png?v=20160829b') no-repeat; font-size:0;} .postmorevideochannel:hover,.postmorevideochannel:focus{background-position:0 -30px;} @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) { .postmorevideochannel{background:url('/images/video_channel_more_2x.png?v=20160829b') no-repeat; background-size:100% auto;} } 回覆 引用 TOP
 davidbat2004 一星級會員 帖子99 積分136 金幣0  註冊時間2008-6-24  發短消息 加為好友 3# 大 中 小 本主題作者 發表於 2017-10-6 11:47 PM  只看該作者     I got it..Thank You!! I make a spelling mistake here...Sorry~~ .postmorevideochannel{margin-top:10px;display:block; width:160px; height:30px; background:url('/images/video_channel_more.png?v=20160829b') no-repeat; font-size:0;} .postmorevideochannel:hover,.postmorevideochannel:focus{background-position:0 -30px;} @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) { .postmorevideochannel{background:url('/images/video_channel_more_2x.png?v=20160829b') no-repeat; background-size:100% auto;} } 回覆 引用 TOP