1 . 已知函数
,当
时,
与
的大小是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3311d84730c5d001343620c1a3c81895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725173c99b6fbb958cdab101569985dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9def8a5bfad740550c49c6fc12172893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
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2 . 给定
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d886114886ecb28103c15cdcf11a5c1e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da6d82d173ad18cc040e94c925b5ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d886114886ecb28103c15cdcf11a5c1e.png)
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3 . 若实数
使得
对任意
都成立,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc689d39b6e59fd4fe38e97ee78366a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7ae182b2c19b6c25fbe4eb23fd0c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 设
、
为实数,且满足
,
.则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e5c024850f147986bc7e8019458bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1857397e230b55d3f479da88ac318353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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5 . 已知
,且
.则
的最小值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7414e286c3e65c2da60918776b2343c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0def820164925d0f77d6d8d3b13f31b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d51113ba7f05ced0c7cd12567f0cda1.png)
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6 . 在锐角
中,令
.则.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af602ab17a6556f1b3e4117f81add31.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 设
、
、
.则
的最大值是________ .
![](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/a29dfbbb34da9ed6abd26f806588afc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf16ea373ccb437a183786c76a07f1ee.png)
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8 . 如图,在直三棱柱
中,
,
,
,
是线段
上一动点.则
的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208a5ddd1c0295ad39ca73dd5f20d445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be3d85716c301231663fd71b697a4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9acd2a9a738cd9387c390b2cd6572c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/0c391947-756b-4855-a505-62da5b30b2e2.png?resizew=192)
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9 . 若
,其中
是
的对边,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a04ed51649ef4a95ef85befe499e7b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24c783e17afcfad2b60df1b7e686118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a04ed51649ef4a95ef85befe499e7b.png)
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10 . 设
,且满足
.那么,
的值是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195bd1b8d9f459619ef9dfd04657fdf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efeaa67f7109df132417a544c4ab0a25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2546b62066eea352fad4925e5ec426.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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