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粤爱好者何万程(1785***) 11:28:41 设t=sqrt(m)+sqrt(n),则 sqrt(m)=t-sqrt(n), m=t^2+n-2tsqrt(n), sqrt(n)=(t^2+n-m)/(2t), 即n是有理数的完全平方,m类似
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2025-7-21 11:43 GMT+8
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