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(i) ( 3 x_ 1 +x_ 2 leq 600 ; x_ 1 +x_ 2 leq 300 ; x_ 1 -x_ 2 leq 100 ; x_ 1 , x_ 2 geq 0 ) (ii) ( f left(1+x 1-x right)=2 1-x ). | Suva Ai