2.5,0.7和谁是一组勾股数?
题目
2.5,0.7和谁是一组勾股数?
答案
2.5^2-0.7^2=5.76=2.4^2
2.5^2+0.7^2=6.74不是完全平方数
所以2.5,0.7和2.4是一组勾股数
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