|2x-1|=-|3y-6| 则(xy)=

问题描述:

|2x-1|=-|3y-6| 则(xy)=

x=1/2
y=2
xy=1/2*2=1

|2x-1|=-|3y-6|
∵绝对值非负
∴2x-1=0,3y-6=0
所以x=0.5,y=0.5
xy=0.5×0.5=0.25

|2x-1|=-|3y-6|
|2x-1|+|3y-6| =0
2x-1=0, 3y-6=0
x=½, y=2
xy=1