题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015647-52814.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-74429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
(Ⅱ) 若
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-14747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-61987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-34531.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-73638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-63060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-75786.png)
解析
试题分析:(Ⅰ)将
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-74429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015647-52814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-52497.png)
求
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-41677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-20786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-17077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-66384.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-14747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-13701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-57299.png)
这只要求出函数
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-22855.png)
试题解析:(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-74429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-52497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-76465.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-41677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-77392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-20786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015652-14914.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-73638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015648-36811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-63060.png)
(II)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015650-17077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015652-96804.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015652-86103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015652-14555.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015652-88251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015651-77392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015653-23858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-73638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015653-23858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015653-29293.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015653-96143.png)
由此得:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-75786.png)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015653-79119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015654-43310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015654-90576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-34531.png)
综上得:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015649-75786.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015644-13671.png)
A.(-1,3) | B.(-1,2) | C.![]() ![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015636-92167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015636-11138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015637-27734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015637-31814.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015625-70551.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015625-65766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015625-61561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015625-43075.png)
(2)讨论方程
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015626-72557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015617-14511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015617-30901.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015602-87621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015602-16287.png)
(1)记
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015603-23560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015603-23909.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015603-71738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015603-48377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015603-61738.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015604-14555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015604-41910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015604-76634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015604-40709.png)
最新试题
- 1 小说《骆驼祥子》作者是 其中你印象最深刻的一个人物是(姓名)
- 2伊斯兰教的创立者是[ ]A.乔达摩·悉达多 B.耶稣 C.安拉 D.穆罕默德
- 3关闭发动机的列车会停下来,是因为关闭发动机后( )A.列车的惯性消失B.列车不受力的作用C.是水平方向的阻力使列车停下
- 4一辆卡车在公路上匀速行使,起初看到里程碑上的数字为AB,过了一小时里程碑上的数字为BA,又行驶了一小时里程碑上的数字为三
- 5下列有关课文内容和文学常识说法无误的一项是( )(3分)A.现代作家王愿坚写的散文《草》以草为线索,先后安排了误食毒
- 6下列各项动物行为,属于学习行为的是 ( )A.母鸡孵卵B.蜘蛛结网C.蜜蜂采蜜D
- 7若直线被圆截得的弦长为4,则的最小值是( )A.16B.9C.12D.8
- 8【城乡规划】下图为“我国东部某城镇土地利用类型分布示意图”。读图回答下列问题。(10分)(1)该城镇功能分区中,甲、乙、
- 9如图是某村农作物种植情况统计图,看图解答以下各题: (1)在扇形统计图中的括号内填上适当的数据; (2
- 10下列不属于生态系统的是( )A.生物圈B.一块草地C.一个湖泊D.一棵树
热门考点
- 1晾衣服时,为了使衣服干的快一点,我们可以采用哪些方法晾呢?______,从中我们可以发现:水蒸发快慢可能与______有
- 2小明用如图1所示的装置,探究摩擦力的大小与哪些因素有关.(1)实验时,小明将木块放在水平木板上,弹簧测力计沿______
- 3下列图案是我国几家银行的标志,其中是中心对称图形的为( )
- 4当x=______时,代数式5x+34的值为2.
- 5关于点电荷和电场线,下列说法中正确的是( )A.点电荷和电场线可以等效替代它们各自描述的对象B.点电荷是物理模型,而电
- 6黄金首饰的纯度常用“K”来表示,24K是纯金,标 号为18K的首饰中黄金的质量分数是[ ]A.75% B.18%
- 7如图所示,某同学自制一个双缝,打开激光器,让一束红色的激光通过双缝。(1)在光屏上观察到的图案应该是图_________
- 8下列词语书写有误的一项是( )A.熹微 铁铉 即物起兴 顾名思意B.譬喻 馄饨 悠然自在 左邻右舍C.萧瑟 煨炖 囊萤映
- 9已知平面向量a,b满足|a|=1,|b|=2,a与b的夹角为π3,则“m=1”是“(a-mb)⊥a”的( )A.充分不
- 10近年来,我国实施积极的就业政策,就业岗位有了一定增加,但劳动力总量供大于求和结构性就业矛盾仍然十分突出,在这种情况下,要