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湖北省黄冈市2019-2020学年高三上学期11月月考数学试题
适用年级:高三 试卷类型:月考 试题总数:22 浏览次数:263 上传日期:2019-12-03
更新:2020/05/15难度:0.85题型:单选题组卷:449
2 . 复数eqId2cd9e2fe3d6540df9399dbefe49ada54满足eqIdef77f14ab20440918ba7fb4509996d1c,则复数eqId2cd9e2fe3d6540df9399dbefe49ada54的共轭复数的虚部为(   )
A.eqId757fa3a8e0bc4df9bd2f30045051a231B.eqIdfda94bd5da634cf8bb43b21a0b48cf76C.eqIda22bc7a938484bec9fa2ac7d3ad32b7cD.eqId94b89a2896db4245b63d8d1559333bf0
更新:2020/01/15难度:0.94题型:单选题组卷:479
3 . 已知向量eqId2c78c3676163463c90da7857f27d542feqId1e882279f6324560810833cd93eef62c,若eqId1209c7359c614879bba7bf2160d8f25d,则eqId1da0f28d13de4404b1255259409bc7adeqIdc91f7835c4144e81ab23732f3d013fc7夹角的余弦值为(   )
A.eqIdd9014531eb8f4ecfaa1496f0f3b63ac4B.eqId984f3d2a94a14e92890974be2ab293aaC.eqId5222c2ea3b544c58bafb590c9238c493D.eqIdbe16cd0bb9774324a8d1694c43f41ac2
更新:2019/12/03难度:0.85题型:单选题组卷:363