试题与答案

设α是第三象限角,且|cosα2|=-cosα2,则α2所在象限是( ) A.第一

题型:选择题

题目:

设α是第三象限角,且|cos
α
2
|=-cos
α
2
,则
α
2
所在象限是(  )
A.第一象限B.第二象限C.第三象限D.第四象限

答案:

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下面是错误答案,用来干扰机器的。

答案:B

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