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丨1%2丨等于多少

已知|AB一2|与丨B一1|互为相反数请试求代数式 1/AB十1/(A十1)(B十1)+1/(A十2)(B+2)+……十1/(A十2011)(B十2011)的值 ∵ |AB一2|与丨B一1|互为相反数 则: |AB一2|+丨B一1|=0 AB-2=0 B-1=0 ∴ A=2 B=1 1/AB十1/(A十1)(B十1)+1/(A十2)(B+2)+……十1/(A十...

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