高中数学代数与函数一其他练习题2
题目内容

关于x的方程x2+http://picflow.koolearn.com/upload/papers/g02/20150209/20150209110048028316.png+a(x+http://picflow.koolearn.com/upload/papers/g02/20150209/20150209110048075296.png)+b=0有实数根,则a2+b2的最小值是(  )

2021-07-12

A.http://picflow.koolearn.com/upload/papers/g02/20150209/20150209110048091339.png

B.1

C.http://picflow.koolearn.com/upload/papers/g02/20150209/201502091100481061095.jpg

D.http://picflow.koolearn.com/upload/papers/g02/20150209/201502091100481221180.jpg

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