推 stephanini:其實用湊的就好 1,4,9,16,25.36,49...所以可以1+25+49 10/04 12:27
→ stephanini:所以就是這三個正整數的和就是1+5+7=13 10/04 12:28
→ weepwind:沒有更快的方法嗎?湊來湊去好容易湊錯.....>< 10/04 12:46
The number 75 can be written as the sum of the sequare of 3 different
positive integers, what is the sum of the 3 positive numbers?
請問這種題目該怎樣解題??
Ans: 13
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