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無數個
1.完全平方數:一定不是完全平方數,完全平方數是另一個整數的完全平方√a為無理數,a不是完全平方數.2非完全平方數:不一定是非完全平方數,因為非完全平方數包含負數.3非負實數:一定是非負實數,但不包括0,因為實數包括…
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