题干

函数y=2x2﹣2x﹣3有以下4个结论:

①定义域为R,

②递增区间为[1,+∞)

③是非奇非偶函数;

④值域是[

16
1
,∞).

其中正确的结论是____.

上一题 下一题 0.0难度 选择题 更新时间:2018-12-06 06:52:59

答案(点此获取答案解析)

①③

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