在
中,角
所对的边依次为
,
,记
,若函数
(
是常数)只有一个零点,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dffb102a8b4d5524eac18a873030206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd833201a3616f956af8d6eb7f941e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b18f3160c44b0f7cc600233ac32b12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
更新时间:2017-11-09 17:02:35
|
相似题推荐
填空题-单空题
|
较难
(0.4)
名校
【推荐1】设函数
若函数
有三个零点,则实数a的范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba927a317368425a54825e739ad9176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230a3f3ba88f7a10fccbcde631e4b689.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
有两个零点,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e02ef9fc4e2c5c96357fcf6afe14b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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】在
中:①若
,则
;②若
,则
;③若
,则
;④若
,则
;⑤若
,则
其中正确的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3415a9c032fed90decde3221e625339c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3415a9c032fed90decde3221e625339c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78bfb528e6ebb03a6ea5bde35e30ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207c8ce6c3ab974e03f75ce5177c5b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399726efc5f0bc9a5afb4a0f79a02823.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】
的内角
所对的边分别カ
,则下列命题正确的是______ .
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac23f6ae54aa85cb26c124514c0c8ee2.png)
②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9caac472ab49e753350e5da7a29b9.png)
③若
,则
是锐角三角形
④若
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e33dd422f97bec998b36b681f3994d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac23f6ae54aa85cb26c124514c0c8ee2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4a17009863be02bee83baf29718120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9caac472ab49e753350e5da7a29b9.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30d913f37ddb7569c3de5078a3c20df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7f900e2accd984de0fb5baa96592bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062cb9f8a1d6eeb390bda2d258fbce21.png)
您最近一年使用:0次