答案应该是一个数集,它满足条件:
x=sqrt(40[x]-51)/2
或者,
x=-sqrt(40[x]-51)/2
这里,
[x]>=2;
答案应该是一个数集,它满足条件:
x=sqrt(40[x]-51)/2
或者,
x=-sqrt(40[x]-51)/2
这里,
[x]>=2;
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