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Consider the linear programming problem....

Consider the linear programming problem.
Maximize `Z=x+y`
Subject to `2x+y-3ge0`
`x-2y+1 le 0`
`yle 3`
`x le 0, y le 0`
(i) Draw its fesible region.
(ii) Find the corner points of the feasible region.
(iii) Find the corner at which Z attains its maximum.

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