[計量] 剛剛在韓網看到的
1.
0 < x < 5 < y < 10
Column A x + y
Column B y/x
2. The function F(m) is defined as the product of m+4 , m+5, m+6 for all
positive integers values of m. If n is a positive integer, then ?
F(n) must be divisible by which of the following numbers?
A) 4 B) 5 C) 6 D) 7 E) 11
3. For any positive integer n, F(n) represents the number of factors of n, inclusive of 1 and itself. If a and b are prime numbers
Column A F(a) + F(b)
Column B F(ab)
第一題應該是D吧?當XY是分數的時候結果就會逆轉了
因為我看到第二題似乎沒有正確解答
但是我直接把三個項式乘開,再帶值進去發現好像只有七可以都整除?(我帶1跟2)
不過我想看看有沒有比較正常的解法 = =
至於第三題因為都是質數的關係
所以兩個選項會相等吧? 謝謝大家~
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09/25 20:32, , 1F
09/25 20:32, 1F
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09/25 20:33, , 2F
09/25 20:33, 2F
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09/25 20:34, , 3F
09/25 20:34, 3F
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09/25 20:36, , 4F
09/25 20:36, 4F
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09/25 20:37, , 5F
09/25 20:37, 5F
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09/25 20:38, , 6F
09/25 20:38, 6F
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09/25 20:38, , 7F
09/25 20:38, 7F
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09/25 20:38, , 8F
09/25 20:38, 8F
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09/25 20:38, , 9F
09/25 20:38, 9F
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09/25 20:39, , 10F
09/25 20:39, 10F
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09/25 20:39, , 11F
09/25 20:39, 11F
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09/25 20:40, , 12F
09/25 20:40, 12F
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09/25 20:40, , 13F
09/25 20:40, 13F
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09/25 20:42, , 14F
09/25 20:42, 14F
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09/25 20:44, , 15F
09/25 20:44, 15F
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09/25 20:45, , 16F
09/25 20:45, 16F
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09/25 20:47, , 17F
09/25 20:47, 17F
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09/25 20:48, , 18F
09/25 20:48, 18F
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09/25 20:48, , 19F
09/25 20:48, 19F
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09/25 21:45, , 20F
09/25 21:45, 20F
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09/25 22:33, , 21F
09/25 22:33, 21F
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09/26 14:14, , 22F
09/26 14:14, 22F
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09/26 14:41, , 23F
09/26 14:41, 23F
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12/02 19:19, , 24F
12/02 19:19, 24F
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04/13 23:49,
5年前
, 25F
04/13 23:49, 25F
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