名校
解题方法
1 . 若函数
是偶函数,则实数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af612fb1be4bafd9d7f0e7602428f061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 血氧饱和度是呼吸循环的重要生理参数.人体的血氧饱和度正常范围是
,当血氧饱和度低于
时,需要吸氧治疗,在环境模拟实验室的某段时间内,可以用指数模型:
描述血氧饱和度
随给氧时间
(单位:时)的变化规律,其中
为初始血氧饱和度,
为参数.已知
,给氧1小时后,血氧饱和度为
.若使得血氧饱和度达到
,则至少还需要给氧时间(单位:时)为( )(精确到0.1,参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41c0ec926e15536c4db2a6cd09700fbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3866b3757d05ceb0d14427142fb52e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effacde9a651bf6d6170054ab28d8369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5451a66fb4f48811e042d8ca250f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e46bff1ba235329ed6ae1321e33f3b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54f562eb3c2a45d65cba066d712825a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94da973d59270f8efca3b0b27177239c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1213c2a26a77edc9d0615b9988474c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3866b3757d05ceb0d14427142fb52e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf872e966c1ce13d0b0e6dd9834b44b.png)
A.0.3 | B.0.5 | C.0.7 | D.1.5 |
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解题方法
3 . 已知
.
(1)若
是第一象限角,求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1ba31afacaf831367cb9ae326c50da.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a569f91b7af1b0f2aa02236e56373e4.png)
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2卷引用:安徽省县中联盟2023-2024学年高一下学期3月联考数学试卷
4 . (1)已知
,求
的值;
(2)求值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c9f990fc696c4b27d02cb9e92fe9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ae49451ecb6c50998bcb28c3e0da4f.png)
(2)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296b34aa1f668a7f5362bed6de4da84c.png)
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5 . (1)若
求
的值;
(2)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6676e0c0cc6b552048c910314e84ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d99d1d9273c5fb149610850ac06ab0.png)
(2)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1f01fc08947a0ca07ee5c5081a430b.png)
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解题方法
6 . 已知正实数
,满足
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f1a77df4f43746a2e3fa334503ae0e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设常数
,函数
,若方程
有三个不相等的实数根
,
,且
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b764ef14e957191f858105eeb8c9715f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b5f36cbdb64b34f98763993dc0e972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
A.![]() | B.![]() |
C.![]() ![]() | D.不等式![]() ![]() |
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名校
解题方法
8 . 已知函数
是偶函数,则实数
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9cef91b203c81d445b6ec06608f680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . (1)计算:
;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd26c78301b0d390af004b58145959d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c92bfa2ef33beab29297081041134e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d916d946c56061f3a4b04ecf40682c.png)
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10 . (1)若
,求
的值;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac64f5c3f43d15d6abd192a44e3050cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1be943adec1e5cccb4be3e7266a8ebc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20dd33d45da16d7ba00341cfe26cf9c.png)
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