忘记了密码?新用户?<一个href="//www.parkandroid.com/account/signup/?signup=true&next=/problems/maximum-of-the-derivative/%26topic_tag%3Dcalculus" id="problem-signup-link-alternative" class="btn-link ax-click" data-ax-id="clicked_signup_from_generic_modal" data-ax-type="button" data-next="/problems/maximum-of-the-derivative/%26topic_tag%3Dcalculus">报名
现有的用户?<一个href="//www.parkandroid.com/account/login/?next=/problems/from-login/maximum-of-the-derivative/try-value-value/" id="problem-login-link-alternative" class="btn-link ax-click" data-ax-id="clicked_login_from_generic_modal" data-ax-type="button" data-is_modal="true" data-next="/problems/from-login/maximum-of-the-derivative/try-value-value/">登录
是什么<一个href="//www.parkandroid.com/wiki/infimium/" class="wiki_link" title="上确界" target="_blank">上确界的四阶导数 f ( x ) = e 一个 x f (x) = e ^ {ax} f(x)=e一个x的时间间隔 [ 一个 , 0 ] [0] [一个,0]为 − 1 < 一个 < 0 ? 1 < < 0 ? −1<一个<0?
忘记了密码?新用户?<一个href="//www.parkandroid.com/account/signup/?signup=true&next=/problems/from-signup/maximum-of-the-derivative/no-group/try-value-value/" id="problem-signup-link-alternative" class="btn-link ax-click" data-ax-id="clicked_signup_from_problem_modal" data-ax-type="button" data-next="/problems/from-signup/maximum-of-the-derivative/no-group/try-value-value/">报名
现有的用户?<一个href="//www.parkandroid.com/account/login/?next=/problems/from-login/maximum-of-the-derivative/try-value-value/" id="problem-login-link-alternative" class="btn-link ax-click" data-ax-id="clicked_login_from_problem_modal" data-ax-type="button" data-is_modal="true" data-next="/problems/from-login/maximum-of-the-derivative/try-value-value/">登录
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