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首页>高中数学综合库>平面向量>平面向量的数量积>平面向量数量积的运算>数量积的运算律
【知识点】 数量积的运算律

类题推荐

【推荐1】已知平面向量eqIdbf80e33f8af0497793eeb1eb2a0e416eeqId26d0383ebc3f44c2984e80b88390a5f5的夹角为eqIdf1c3337151994ec4b99354c9d54f311ceqId431e953d2b684cf5b388d6b1e458577ceqId1b891b66c54f4affabd490fefe15420f,则eqId7f983b0dd52a43d1b7bbfea8aa2e6d2f(   )
A.eqId2411e237a6024ba5812575d3840e3781B.eqId57b3d7f61b5e48a1a1c959fa66d74726C.1D.2
更新:2020/06/01难度:0.85题型:单选题组卷:6
【推荐2】若向量eqIdbf80e33f8af0497793eeb1eb2a0e416eeqId26d0383ebc3f44c2984e80b88390a5f5满足eqId4ae27a7bd84b4ba8b43bcb3b055cb154,则eqId1041ab62619844b6acea884549a12b4a(  )
A.eqId737d7241bd534a9b8645a03265240eb4B.eqIddda48cced83d424b89b7d8f8c62b1056C.eqId6c134c414a5e4643849c88caa4d6a5f0D.eqId9e7446ae83ae4aa580a362ecb09f7dc8
更新:2019/04/11难度:0.85题型:单选题组卷:585
【推荐3】已知点O是边长为1的等边三角形ABC的中心,则eqIdf36737ae52484897ac77eb38ef94b548等于
A.eqId836db6d106e440cd9e5ec0272122b7bbB.eqId62eff4e5932b443ebd29c070574afa79C.eqIdbab94aff4b0e4dd4b6ed838bf5c14c52D.eqId5e2030f65f8745358fdb7ad45a8a806a
更新:2017/10/11难度:0.85题型:单选题组卷:304