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首页>高中数学综合库>空间向量与立体几何>空间向量与立体几何>空间向量及其运算>空间向量及其加减运算>空间向量的加减运算
题型:双空题 难度:0.85 引用次数:37 更新时间:2020/3/26 11:11:47 题号:9868529
如图,在长方体eqId588284d93dc5489295f8f224f8e30d13中,设eqId4f3a160f8cc2486db8160a0d6fee22baeqIdb60bb1649c8b41cb935771acc097167e,则eqId7eab43cbde184960993378eef003d4e6__________eqId0d8b4fe54f084ad0a77f965935dcbbb2__________.figure

类题推荐

【推荐1】正方体eqId588284d93dc5489295f8f224f8e30d13中,eqId71891062a8724584af9a2c4c77cd566e分别为eqId99a3187c2b8f4bcc9703c74c3b72f1f3eqId8f39d706a505485987ccbb3f6177d72d的中点.记eqIda9470b4dd9414cb7bcd975c3be1271b7eqId38d91aca772a4b2c88538a93f8e6be3ceqId8295cec3adfa420a9d22d799215f400e,用eqIde10c5a5cf98c45cabe279aa2c051ab12表示eqIdaec2572bc4b24cfe8c39d9b11f315c38,则eqId2db9f5e45eac41dd8761ab75d3204f49__________,异面直线eqId996e2048847f41d5a5fe0e2282909254eqIdfe9cbfb067114ce8857e621d77cb5feb所成角的余弦值是__________
更新:2018/03/09难度:0.85题型:双空题组卷:427
【推荐2】已知向量eqId9dd56bc9687445a2aeb5ae1950d87b4aeqId42269d721ecd42c7b50c2b71eff8b60d,则eqIddbb1d08a2fdf4306af8d9f86e8f6f959_______________eqIdcf6b5c098d40469cb733df8c832c90fe_____________.
更新:2020/04/16难度:0.85题型:双空题组卷:41
【推荐3】已知向量eqId8597e6498f0b4782b4ae9925ba4b362deqIdafbe61f945184c769f9630d343540d17,若eqId29d3457d452f47bcbe421dcd23fcdacf,则eqId70c52126b23a4d5388d832c32cc794a4___________,若eqId8cd6671e05ab4f5abdb27b705e67c2d4eqId35677c9c8a23419d96fb1e31666778bd,则eqId70c52126b23a4d5388d832c32cc794a4___________.
更新:2020/05/26难度:0.85题型:双空题组卷:0