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误区一:最大整数解就是目标函数取最大整数值.【例1】 已知x,y满足不等式组2x-y-302x+3y-603x-5y-150 求x+y的最大整数解.错解:依约束条件画出可行域如下图所示由3x-5y-15=02x+3y-6=0解得x=7519y=-1219∴x+y=7519-1219=6319,∴x+y的最大整数解为3.点击:错误主要原因是把目
Misunderstanding 1: The largest integer solution is the objective function taking the largest integer value. [Example 1] Known x,y satisfies the inequality group 2x-y-302x+3y-603x-5y-150 Finding the largest integer solution of x+y. : Draw the feasible region according to the constraint conditions as shown in the figure below. It is solved by 3x-5y-15=02x+3y-6=0: x=7519y=-1219∴x+y=7519-1219=6319, ∴x+y The maximum integer solution is 3. Click: The main reason for the error is to