为什么求f(x)=x √1 2x的最大值换元后可以看成负二分之一t方加t加二分之一的最大值? 知乎 Template




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tomski为什么求f(x)=x √1 2x的最大值换元后可以看成负二分之一t方加t加二分之一的最大值? coloring