[中學] 統測數學一題(多項式)
已知k是實數
二次方程式
9x^2+(12k+18)x+(4k^2+12k+5)=0有兩實根
一根>1 一根<0
k的範圍?
感謝大家幫我解惑了
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推
05/08 23:08, , 1F
05/08 23:08, 1F
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05/08 23:10, , 2F
05/08 23:10, 2F
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05/08 23:10, , 3F
05/08 23:10, 3F
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05/08 23:13, , 4F
05/08 23:13, 4F
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05/08 23:15, , 5F
05/08 23:15, 5F
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05/08 23:17, , 6F
05/08 23:17, 6F
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05/08 23:20, , 7F
05/08 23:20, 7F
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05/08 23:20, , 8F
05/08 23:20, 8F
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05/08 23:23, , 9F
05/08 23:23, 9F
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05/08 23:27, , 10F
05/08 23:27, 10F
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05/08 23:29, , 11F
05/08 23:29, 11F
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05/08 23:29, , 12F
05/08 23:29, 12F
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05/08 23:32, , 13F
05/08 23:32, 13F
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05/08 23:37, , 14F
05/08 23:37, 14F
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05/08 23:39, , 15F
05/08 23:39, 15F
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05/08 23:40, , 16F
05/08 23:40, 16F
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05/08 23:40, , 17F
05/08 23:40, 17F
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05/08 23:45, , 18F
05/08 23:45, 18F
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05/08 23:45, , 19F
05/08 23:45, 19F
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05/08 23:46, , 20F
05/08 23:46, 20F
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05/08 23:48, , 21F
05/08 23:48, 21F
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05/08 23:49, , 22F
05/08 23:49, 22F
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05/08 23:52, , 23F
05/08 23:52, 23F
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11/10 11:46, , 24F
11/10 11:46, 24F
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01/02 15:23,
5年前
, 25F
01/02 15:23, 25F
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07/07 10:59,
5年前
, 26F
07/07 10:59, 26F