高中数学代数与函数一其他练习题110
题目内容

已知平面直角坐标系 http://picflow.koolearn.com/upload/papers/20140824/20140824035516881413.png上的区域 http://picflow.koolearn.com/upload/papers/20140824/20140824035516896315.png由不等式组 http://picflow.koolearn.com/upload/papers/20140824/201408240355169121074.png给定,若 http://picflow.koolearn.com/upload/papers/20140824/20140824035516927651.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824035516896315.png上的动点,点 http://picflow.koolearn.com/upload/papers/20140824/20140824035516959608.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824035516959589.png的最大值为 (     )

2021-07-19

A.6

B.http://picflow.koolearn.com/upload/papers/20140824/20140824035516974341.png

C.4

D.2

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