已知函数
在
轴上的截距为
,若函数
在区间
内有零点,无极值点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40899755d6535746c1ea5574a146adf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6798cf3195e54529c97284e99c01eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
2023·全国·模拟预测 查看更多[2]
更新时间:2023-11-20 10:36:33
|
相似题推荐
填空题-单空题
|
较难
(0.4)
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb81af434e270548065475114b00284d.png)
,若方程
有两个不同的实根,则实数
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb81af434e270548065475114b00284d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc41e9c1f36cd4db651e91f8e745ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0008d46dc238d710a1efe7e2c17237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
填空题-双空题
|
较难
(0.4)
名校
【推荐2】已知函数
的图象关于直线
对称,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46740a072768b4b27126dd0c68868c3f.png)
_____ ,
的最大值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4659cdb5a2e204c7916799b21ea5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/722cc53ec0730784f3443f1dc6860fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46740a072768b4b27126dd0c68868c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
解题方法
【推荐1】已知函数
及其导函数
的图象如下图所示,若函数
在
上恰有3个不同的零点
,
,
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4250e1272028150feeab816d9fec43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090a91e4f3c8930674f98a9fa527709b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5175a4148b2a704eb29dd3bb77d033c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e615a5ca4d8e679a19c4e90687c59d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bacde908aec2c313978fc4309d82bc.png)
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
名校
【推荐2】已知函数
的图像经过
两点,当
时,
,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7efeaa74a3bdbde572e93c5d35f071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1d558b89046f25fad95f3239c47748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c4b636a50ba07037f91e982a2a1ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
名校
【推荐3】已知函数
,若关于
的方程
在
上有三个不同的实根,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adae7bba46470f0534e4c4141344763a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54457ac31a7f720cecc1d0542e7505b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
名校
【推荐1】已知函数
,下列命题中:
①
在其定义域内有且仅有1个零点;
②
在其定义域内有且仅有1个极值点;
③
,使得
;
④
,
,使得
;
⑤当
时,函数
的图像总在函数
的图像的下方.
其中真命题有___________ .(写出所有真命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba28a28fd567c9331305ec91d04cf1ae.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c10f7cdfb1c47057e702ae15a60cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372e0890a16df97fc45675285f176033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf0c4df086f249d856fe6875ad6d890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2f24b4fa5308650a244d954f78f09b.png)
⑤当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7adde0246fc0c3bfc8365d2bd04f21.png)
其中真命题有
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
【推荐2】“如意金箍棒”是神话小说《西游记》中孙悟空所使用的兵器,大小可随意变化.假设其变化时形状始终保持为圆柱体,底面半径为
,且以
等速率缩小,而长度以
等速率增长.若“如意金箍棒”的底面半径从
缩到
的过程中,底面半径为
时,体积最大,则其体积最小时底面半径为_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689ff84e2d7f52c7446ef789a54557da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82688288268859fc591bd1d9f2e49127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689ff84e2d7f52c7446ef789a54557da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb26c5cdef6f16f4b39cd091041b439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
您最近一年使用:0次