[其他] 求K的範圍?
假設α、β為一元二次方程式χ^2-7χ+Κ=0的二根,
已知(α^2-5α+4)(β^2+3β+2)為負實數,試求出Κ的範圍。
拜託高手們幫忙,感恩!
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03/16 21:38, , 1F
03/16 21:38, 1F
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03/16 21:38, , 2F
03/16 21:38, 2F
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03/16 21:39, , 3F
03/16 21:39, 3F
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03/16 21:43, , 4F
03/16 21:43, 4F
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03/16 22:09, , 5F
03/16 22:09, 5F
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03/16 22:19, , 6F
03/16 22:19, 6F
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03/16 22:58, , 7F
03/16 22:58, 7F
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03/16 22:58, , 8F
03/16 22:58, 8F
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03/16 23:12, , 9F
03/16 23:12, 9F
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03/16 23:36, , 10F
03/16 23:36, 10F
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03/16 23:37, , 11F
03/16 23:37, 11F
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03/16 23:39, , 12F
03/16 23:39, 12F
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03/17 00:09, , 13F
03/17 00:09, 13F
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03/17 17:44, , 14F
03/17 17:44, 14F
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01/02 15:42,
5年前
, 15F
01/02 15:42, 15F
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07/07 11:57,
4年前
, 16F
07/07 11:57, 16F