已知A、B、C的坐标分别是A(3,0),B(0,3),C(cos
,sin
).
(1)若
,求角
的值;
(2)若
求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f6c0b269b81d9f742fb844340f743d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a603789ad00413497bca7e08deaa4c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05425711d6b6a89d8257ab90fde2c0d7.png)
9-10高一·河北邢台·单元测试 查看更多[4]
(已下线)河北省沙河市第二中学高一数学单元测试(4)黑龙江省牡丹江市海林市朝鲜族中学2019-2020学年高一上学期期末数学试题(已下线)第24讲 平面向量的数量积及其应用 (讲)- 2022年高考数学一轮复习讲练测(课标全国版)(已下线)专题26 平面向量应用
更新时间:2016-11-30 06:31:43
|
相似题推荐
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】已知
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bedd661e8552acc66992229b744c58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03342454dbb8b0dfd13417519fb37f7a.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】已知
(
).求下列各式的值:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565fba49bbc186de247ca4033737096e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bb3e497961317b2ed03a85840018b5.png)
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(0.65)
【推荐3】已知函数
.
(1)当
时,求
的值域;
(2)当
,
时,设
,且
关于直线
对称,当
时,方程
恰有两个不等的实根,求实数
的取值范围;
(3)当
,
,
时,若实数
,
,
使得
对任意实数
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40a4fc331f861a5d08dfce98bbfb114.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7126d6d76248996a222631cc9ea93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c459c5d37f30210330dbeaf49f5662f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b124c20569fad5eb3a6a56bd800c89e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d873ccbd26127bb543951eff8af9337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fa4d9221f2950c15af61e480c5a9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fd3fc96fc4f09fb7258ceaa3dc8a6f.png)
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【推荐1】在平面直角坐标系中,角
的顶点与坐标原点重合,始边与
轴非负半轴重合,终边过点
.
(1)求
的值;
(2)已知
为锐角,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee63e0c8000e0615c710da7ae1347cb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774ca76f964ab14c793cad70553b180d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1def47323e23f495ae3fde663ebcd7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】(1)证明:若
,求证:
;
(2)已知
,
均为锐角,且满足
,
,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d677e6f94d57c506bd007617c50a19e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99db5e19a19614908bee34c4ae100286.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2c1ac87d07d6c7a1a62eb333d112d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8628325b9e41358aec8f97a50da7f27a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfea1e888676a13ad69c72fba0405ea.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】设
是公差为
的等差数列,且
,
是等比数列,其前
项和为
,
为坐标原点,向量
,
,点列
满足
,其中
.
(1)求:
与
的通项公式;
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced4e381e8c3336848b8c436dbc584f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bef6cf7cb4d85290710c9dd25055581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3210cea8e8969b0b1a3d1efbf9e35f74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b45686d88c7c884917adc9b4f263945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c051c2459ca7e2edd8ece9e565ec4b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396a2a0d9aa353c2cd5044d0109459b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
(1)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ed7238ae21912529c6c054979bfcab.png)
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解题方法
【推荐2】已知向量
满足
,
.
(1)若
,求
的值;
(2)若
,求
在
上的投影向量的模.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3551e9998e13f08a21bee1e2cefa5e62.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e397b9490e0e3e0b24908ca21d68f174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d51bb574bbf9953cc4bee290cebffe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683a0e69dfb864c40ec858cd819568f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
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适中
(0.65)
名校
【推荐3】在
中,角
所对的边为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d81258504e21deabb5569918dbecd80.png)
(1)求角
的大小;
(2)设向量
,试求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d81258504e21deabb5569918dbecd80.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2c914b130add15151f8eb2e3749578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2356d562e4e5f11e018bf7d408eb1bf.png)
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适中
(0.65)
名校
【推荐1】已知
,
,
,
.
(1)
为何值时,点
在
轴上?
(2)若
与
的夹角是钝角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02f72969839fc9bbc9aed59b4a76e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e655ad1007f9ac4a71e94a5b6200ad8.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
【推荐2】已知坐标平面内
,
,
,P是直线OM上的一个动点.当
取最小值时,求
的坐标,并求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399dda7bc2590ba4982a40b9ebea9602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781ec74f9d0d891d9b4a9904088983e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f0802768d4ddf95fc72b0bad42e914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35031ade086c0cb5adcd82aaef62462.png)
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