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  5. 錯在哪？該怎麼解？
Mathematics
Senior High
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錯在哪？該怎麼解？

X+143 X≤2 6. 設x,y為實數,且|x+1|≤3,|2y-1 ≤3,若x²-3y的最大值為M,最小值為m, 則M+m= = 16 13 24-163 24-12-32-4-3(-1)=1-1-3)-18 2y≤4 212-2 X+123 X=-4 +≤4≤2 12-110=5-312-44-2 18+2) = 16 -4 ≤ X ≤2 數學(一)/2-2
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