若f(x)=(m+1)x2-(m-1)x+3(m-1)<0对一切实数z恒成立,则m的取值范围是 ()。

A.<img src='https://img2.soutiyun.com/shangxueba/ask/1860001-1863000/1862531/ct_kmbacom_kmbacochoose_00125(20096).jpg' /> B.<img src='https://img2.soutiyun.com/shangxueba/ask/1860001-1863000/1862531/ct_kmbacom_kmbacochoose_00125(20096)1.jpg' /> C.<img src='https://img2.soutiyun.com/shangxueba/ask/1860001-1863000/1862531/ct_kmbacom_kmbacochoose_00125(20096)2.jpg' /> D.<img src='https://img2.soutiyun.com/shangxueba/ask/1860001-1863000/1862531/ct_kmbacom_kmbacochoose_00125(20096)3.jpg' /> E.<img src='https://img2.soutiyun.com/shangxueba/ask/1860001-1863000/1862531/ct_kmbacom_kmbacochoose_00125(20096)4.jpg' />

时间:2023-08-10 11:59:15

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