24-25高一上·全国·课后作业
1 . 若向量
与
有共同的起点,则以
的终点为起点,以
的终点为终点的向量等于
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb667795acdfafa436ee35e152adbc4.png)
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2 . 两个同向向量的差一定小于这两个向量的和.( )
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3 .
=
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c7faf25d47610e5ff1f5165e360d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1493ffc23d3c1bdd7ebb1e6b782313f6.png)
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4 . 已知
,试判断下列结论是否正确:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf14cecd098daeef5fcbe63901288366.png)
( )
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba18dd2bb7c0000cf6aa1bde4fca315e.png)
( )
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcc9d7e6ac0b39993a92afe0d8ecf9e.png)
( )
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926a7bc06029feff54757c15de5a67db.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de5db5c2e41cfbfc0436e7190778803.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf14cecd098daeef5fcbe63901288366.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba18dd2bb7c0000cf6aa1bde4fca315e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcc9d7e6ac0b39993a92afe0d8ecf9e.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926a7bc06029feff54757c15de5a67db.png)
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解题方法
5 . 如果
,则四点O,P,M,N一定共面.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3fcb4196d6b5832c787cfa3853fb02.png)
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