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| 数学问题二例 | |
| 摘 要： | 1.The triangle inequality guarantees that the sum of the lengthsof two side of a triangle is greater than the length of the third.As aconsequence,if x and y are the legs of a right triangle,with x≤y,andz is the hypotenuse,then x+y>z,so x>z-y.Under what circum-stances will x>2(z-y)be true? |
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