设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,则y²/x的取值范围

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设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,则y²/x的取值范围
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设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,则y²/x的取值范围
设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,
设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,则y²/x的取值范围

设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,则y²/x的取值范围

线性规划题,画可行域,设原式为1/t,x=ty2,A(3,4),B(2,9/2)为最佳点,答[9/2,81/8]

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