摘要:11.已知在平面直角坐标系中.O (0,0), M (1,), N (0,1), Q (2,3), 动点P (x,y)满足: 0≤≤1,0≤≤1,则的最大值为_____.
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已知在平面直角坐标系中,O(0,0),A(1,-2),B(1,1),C(2,-1),动点M(x,y)满足条件
,则z=
•
的最大值为( )
|
| OM |
| OC |
| A、-1 | B、0 | C、3 | D、4 |