Warning: array_combine(): Both parameters should have at least 1 element in /www/wwwroot/wd.haodianxin.cn/wd.php on line 122 Warning: Invalid argument supplied for foreach() in /www/wwwroot/wd.haodianxin.cn/wd.php on line 129 Warning: Missing argument 2 for mc_save(), called in /www/wwwroot/wd.haodianxin.cn/wd.php on line 154 and defined in /www/wwwroot/wd.haodianxin.cn/wd.php on line 46 已知函数f(x)=(ax2 x)*e的x次方,若f(x)在[-1,1]上是单调增函数求a的取..._9 - 问答
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已知函数f(x)=(ax2 x)*e的x次方,若f(x)在[-1,1]上是单调增函数求a的取...

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