有关导函数的数学题设f(x)=ax^3+bx^2+cx的极小值为-8,其导数y=f`x的图像经过(2,0)&(2/3,0),(1).求f(x)解析式(2).若对x∈[-3,3]都有f(x)≥m^2-14m恒成立,求实数m的取值范围f′(x) 开口向下 ,经过的点是(-2,0)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 18:46:57
![有关导函数的数学题设f(x)=ax^3+bx^2+cx的极小值为-8,其导数y=f`x的图像经过(2,0)&(2/3,0),(1).求f(x)解析式(2).若对x∈[-3,3]都有f(x)≥m^2-14m恒成立,求实数m的取值范围f′(x) 开口向下 ,经过的点是(-2,0)](/uploads/image/z/1690079-23-9.jpg?t=%E6%9C%89%E5%85%B3%E5%AF%BC%E5%87%BD%E6%95%B0%E7%9A%84%E6%95%B0%E5%AD%A6%E9%A2%98%E8%AE%BEf%28x%29%3Dax%5E3%2Bbx%5E2%2Bcx%E7%9A%84%E6%9E%81%E5%B0%8F%E5%80%BC%E4%B8%BA-8%2C%E5%85%B6%E5%AF%BC%E6%95%B0y%3Df%60x%E7%9A%84%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%282%2C0%29%EF%BC%86%282%2F3%2C0%29%2C%281%29.%E6%B1%82f%28x%29%E8%A7%A3%E6%9E%90%E5%BC%8F%282%29.%E8%8B%A5%E5%AF%B9x%E2%88%88%5B-3%2C3%5D%E9%83%BD%E6%9C%89f%28x%29%E2%89%A5m%5E2-14m%E6%81%92%E6%88%90%E7%AB%8B%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4f%E2%80%B2%28x%29+%E5%BC%80%E5%8F%A3%E5%90%91%E4%B8%8B+%2C%E7%BB%8F%E8%BF%87%E7%9A%84%E7%82%B9%E6%98%AF%28-2%2C0%29)
xW[sF+f-`d%$%t0}\횁&\b',?/V$8tSh=gϞi`lʧq\#,-}(vUiOz!28^oTkŏntW5:Ls/c$={V7 "~fޠ=Sĕa*u9 +ɏa;LG
^Tjp G2=;sozgpa:*ڜص+ Qj@ŞeCps ͺ:2֟pԸqw;OD6Atgw1tsЅl8