1.如果a是2008的算术平方根,那么2008的平方根是?
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100
2.当a等于什么时,3√a有意义?
`````````````````````````````````````````````````````````1.如果a是2008的算术平方根,那么2008的平方根是?
2.当a等于什么时,三次根号a有意义?