prove if the second derivative is positive, then the function is concave.
来源:百度知道 编辑:UC知道 时间:2024/06/02 09:14:10
你这题本来就有问题
When the second derivative is positive,then the function is concave up.
楼上有理,句子不全,典型中国式英语,
意思应该是:如果证明得第二个派生是正确的,那么此方程不成立。
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