高中数学代数与函数一函数练习题29
题目内容

设函数 http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image044.pnghttp://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image045.png(    )

2021-07-26

A.在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image046.png内均有零点

B.在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image046.png内均无零点

C.在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image047.png内无零点,在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image048.png内有零点

D.在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image047.png内有零点,在区间http://picflow.koolearn.com/upload/2013-04/12/0dc22dc6-907b-4ed2-950d-f866f87a26bd/paper.files/image048.png内无零点

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