解题方法
1 . 若幂函数
的图象经过点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff82fccbaa3784b491d8484a57468de.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89813b958012156f03283a0a01643c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76806f6d863869204078084f51830cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff82fccbaa3784b491d8484a57468de.png)
您最近一年使用:0次
2 . 函数
在区间
上的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5449a03e568e9cf182b53fa9e5343535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
A.![]() | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知函数
的定义域为R,
为奇函数,
为偶函数,且当
时,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513ff8ad9159e187874ab5c1e2322872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd05a11b448c80647d43b665ee319048.png)
A.![]() | B.![]() ![]() |
C.当![]() ![]() | D.方程![]() ![]() ![]() |
您最近一年使用:0次
解题方法
4 . 已知函数
的定义域为
不恒为零,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0ef3d1ff1589da0cb326c4debc274f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bde53de43dda74249725823c0e6610.png)
A.![]() | B.![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知函数
,
满足以下条件:
①
,
;
②
,
,
,
.
(1)求
,
的值.
(2)判断函数
,
的奇偶性,并说明理由.
(3)若
,
,试判断函数
的周期性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306984f0895ba32a7b3bb607065b1eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83e9f562c10762097469dea27c1e109.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6593a700bf3e89107556454666b787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50ac027c6ebce491ae836524d89901c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ebeb1c1f2826da8a2e0761f2d2ba87d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98eb23b8c96a34dd720e00669aa8ed2b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a078165d75cfb890141845324a6173b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60cf12a81b11e33356fe7e1c9e3d0b9.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaff6cfe1d15bd64c1fa76af5e52831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158fbbd2cbedeb9a6fa1a900630369f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
您最近一年使用:0次
名校
6 . 已知集合
,若“
”是“
”的充要条件,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc0982d002a381b91be1f775a40d5ae.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8723077870d8ad10b44c2bb53e2b4124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc0982d002a381b91be1f775a40d5ae.png)
您最近一年使用:0次
名校
解题方法
7 . 对任意
,不等式
恒成立,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45256bc50846ff052fd5621be50972c.png)
A. ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 函数
的单调递减区间为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c81ac87554fbb18458a072def247606.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知函数
.
(1)若
,求
在区间
上的最大值和最小值;
(2)若
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e569275b72bb0ccd25959dea844035f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e354f44c5841806fdc363073abdd052.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825094a0d5c41dcb90880b3a5f27e435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 某企业2023年的电力消耗为
千瓦时,由于设备更新,该企业计划从今年(2024年)开始,每年比上一年的电力消耗减少
,则该企业当年的电力消耗不超过
千瓦时的最早的年份是(参考数据:
,
)( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb87b1f8c5360629d063192eadb8230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f7633f17ba15af342e69cbaa638dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b58ebe6148d43fb701a23e039438c54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8288e1d872c6b5872b84a32469ff9e76.png)
A.2031年 | B.2030年 | C.2029年 | D.2028年 |
您最近一年使用:0次