11-12高三上·四川绵阳·阶段练习
1 . 函数
的定义域是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53cf6b50b422885f7b37147cbd1f371.png)
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解题方法
2 . 长方体
中,
,
,则异面直线
与
所成角的余弦值为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a74b4952ac58a5e3fa3f2de86024ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
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10-11高三上·浙江杭州·阶段练习
名校
3 . 函数
的图象为
,下列结论中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d604ba3a763f2a4be9e0a62fc86b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.图象C关于直线![]() |
B.图象C关于点(![]() |
C.函数![]() ![]() |
D.由![]() ![]() ![]() |
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4 . 如图,为测量坡高
,选择A和另一个山坡的坡顶C为测量观测点.从A点测得
点的仰角
,C点的仰角
以及
;从C点测得
.已知坡高
米,则坡高![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/8ba097ab08bf4591843df43aeeff633a.png?resizew=44)
____ 米.
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/2e63a707807c48229f90f5ac43aff2fb.png?resizew=169)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/d38fdc23924c41dfb7df3f4b34e90a08.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/940761a060e7499c908d246d4e217868.png?resizew=21)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/b9923f8249554e168a440c82528b4461.png?resizew=91)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/7d0af07c284a46a78998e749f839ec69.png?resizew=85)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/d7c5226f2aea442284815daba32368b0.png?resizew=89)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/223d8f8fb81a4d599f90c6bb34e0e3f5.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/08eff14a9e9a41f198cff6f9617be03f.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/8ba097ab08bf4591843df43aeeff633a.png?resizew=44)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572070233792512/1572070239617024/STEM/2e63a707807c48229f90f5ac43aff2fb.png?resizew=169)
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11-12高三上·四川绵阳·阶段练习
5 . 满足函数
和
都是增函数的区间是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c65d71e57e6e7697e2f627dcd58583.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10-11高二下·四川雅安·期中
解题方法
6 . 已知
为锐角,且
.
(1)求tanα的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2093073cd712f8c2bb1309c74e6520b0.png)
(1)求tanα的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23dcb68169d0b26946638659bbf4e86.png)
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11-12高一上·四川攀枝花·阶段练习
7 . (1)
,求
的值;
(2)
,求
的值;
(3)
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3e0ac150f5c6b98bfc7d28b6720d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8dcfeb2abe554629cefb90e6969ee8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31848a55bb11ebd264cd7f0500158e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8dcfeb2abe554629cefb90e6969ee8.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb8898d840443e228d34d94056f081e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b38fb7adfd750e5c5d4568a5e6cee66.png)
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9-10高二·四川巴中·期末
8 . 在
中,
,
,
,则这个三角形是___________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a46eecbd70c1e59fd1bd278ed0c763e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
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11-12高三上·四川绵阳·阶段练习
9 . 若
,
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281805b9dfe2162215dfe6b5ad6d7b03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d494c34104f679bdbea537164f1907.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次