函数的单调性与极值13. (1)a大于等于3 (2)f'(x)=-3x^2+2ax,此导数是二次函数而且开口向下,原函数不就是先递减再递增在递减么,x1=0,x2=2a/3,f(0)应该是最小值啊,为什么答案f(0)是最大,不懂...
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 01:33:16
![函数的单调性与极值13. (1)a大于等于3 (2)f'(x)=-3x^2+2ax,此导数是二次函数而且开口向下,原函数不就是先递减再递增在递减么,x1=0,x2=2a/3,f(0)应该是最小值啊,为什么答案f(0)是最大,不懂...](/uploads/image/z/10270134-54-4.jpg?t=%E5%87%BD%E6%95%B0%E7%9A%84%E5%8D%95%E8%B0%83%E6%80%A7%E4%B8%8E%E6%9E%81%E5%80%BC13.+++%281%29a%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E3+++%282%29f%26%2339%3B%28x%29%3D-3x%5E2%2B2ax%2C%E6%AD%A4%E5%AF%BC%E6%95%B0%E6%98%AF%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E8%80%8C%E4%B8%94%E5%BC%80%E5%8F%A3%E5%90%91%E4%B8%8B%2C%E5%8E%9F%E5%87%BD%E6%95%B0%E4%B8%8D%E5%B0%B1%E6%98%AF%E5%85%88%E9%80%92%E5%87%8F%E5%86%8D%E9%80%92%E5%A2%9E%E5%9C%A8%E9%80%92%E5%87%8F%E4%B9%88%2Cx1%3D0%2Cx2%3D2a%2F3%2Cf%280%29%E5%BA%94%E8%AF%A5%E6%98%AF%E6%9C%80%E5%B0%8F%E5%80%BC%E5%95%8A%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E7%AD%94%E6%A1%88f%280%29%E6%98%AF%E6%9C%80%E5%A4%A7%2C%E4%B8%8D%E6%87%82...)
xݎ@_`vl}Mn.-FUH`v/c:R6pi?L٫7{N[Y㨝`&">ĢAxڞ؉,אWh]Ը
wрg]vOYEpG]:h}sG9~iqԢ/١/[E}"אk:P8 t]?,㥽W\Mo+y&RC&SP^vs}{9N;5džk=ځq-&