解题方法
1 . 已知函数
.
(1)若
,解不等式
;
(2)若函数
在区间
上的最小值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c1e8c852b08c8b7eea87dbd17f63a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca5e984d5e14b4be18a5ee99f80a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知
,
,
,则
,
,
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1a71ebccfebe269d337da9d130b1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec896e07c51a5e96a544260e5042d548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fcd9891c4d486420bc6adf957acf836.png)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
3 . 已知函数
,
,定义函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec09e7ab26188617083f3b467231250.png)
(1)设函数
,
,求函数
的值域;
(2)设函数
(
,
为实常数),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445f5ea3b5f3ccc852c66a4b27d3b95f.png)
,当
时,恒有
,求实常数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70458945dae62f8f6a553dfaa8eb723a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b40b099989abb2d15ddf60413c8a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec09e7ab26188617083f3b467231250.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed94bc7970736b3f07ac833b851a751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3027ab2bb54feb0d186d776b27d500b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f6d073f26c136e2d862e11a8494c3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22af653d3aa1a75dc6de30a1cfb6cea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445f5ea3b5f3ccc852c66a4b27d3b95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07180028d2769a3fb9735853912d4a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22af653d3aa1a75dc6de30a1cfb6cea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8c97a77335a5dc082b1e99154eee37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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解题方法
4 . 下列函数中是偶函数的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
5 . 若对任意
和任意
,都有
成立,则实数
的取值范围_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5d54ea50d01535318b10a9fa570931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e947917374c88556142fccedb79025c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a163ebd274c5297bed20a9498307552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 化简求值:
(1)
;
(2)若
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8597edafe543155faf884b2149fef09e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ccf942db53c0798a9b0db6eb44597a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db09a66515a0caa4291d1078fc7661a.png)
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7 . 若
且满足
,设
,
,则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264cdeeed28efd3820ecacaf172d1f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e63ea57c885520a0ec0b94ca4c10058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0617e4d42f5e538489bd30e3dd12cafd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 若
,
,
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec336faee8689281a6f6b465e7fcff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974d4a282494fe53effcef57f3433483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce22ff66bf1aff27f3e729fe77e8c89.png)
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9 . 若实数
,
满足
,则下列关系中正确的是( )
![](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/9aaf0018bc95456da6d77bb1f37448c4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 下列四个函数中,与
有相同单调性和奇偶性的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次