|,
2x-1=0,y-6=0
x=1/2,y=6
3-xy-x²y=3-1/2*6-(1/2)^2*6=3-3-6/4=-3/2
--------------------
因为½×|2x-1|≥0
-1/3|y-6|≤0
要 ½×|2x-1|=-1/3|y-6|,
必须½×|2x-1|=-1/3|y-6|=0
|,
2x-1=0,y-6=0
x=1/2,y=6
3-xy-x²y=3-1/2*6-(1/2)^2*6=3-3-6/4=-3/2
--------------------
因为½×|2x-1|≥0
-1/3|y-6|≤0
要 ½×|2x-1|=-1/3|y-6|,
必须½×|2x-1|=-1/3|y-6|=0