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【简答题】
已知单位负反馈系统的开环传递函数为 , (1)用劳斯判据判断系统的稳定性;(2)若要求闭环系统特征方程根的实部均小于-1,试问开环增益K应该如何取值?(写出详细的解题过程,拍照上传)
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A.
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