来自曹艳的问题
1.已知x=√2+√3,且(x⁴)²+1=x⁴(6y+8),则y的值是_____.2.Ifarighttrianglehasedgelengthsa-b,a,anda+b(aandbarebothpositiveintegers),thentheperimeterofthetrianglemightbe()【单选题】（A）60.（B）70.（
1.已知x=√2+√3,且(x⁴)²+1=x⁴(6y+8),则y的值是_____.
2.Ifarighttrianglehasedgelengthsa-b,a,anda+b(aandbarebothpositiveintegers),thentheperimeterofthetrianglemightbe()【单选题】
（A）60.（B）70.（C）80.（D）90.
3.计算：2的2013次-2的2012次-2的2011次……-2²-2-1=_____.
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2020-05-27 13:18