题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-81967.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-85663.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-29486.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-38576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-39496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-70704.png)
解析
试题分析:(Ⅰ)令
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-40939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-62077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-64462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-86604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-38576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103525-54898.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103525-35684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103525-37797.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103525-27483.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-39496.png)
(Ⅱ)由题意
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103525-75380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-44373.png)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-46240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-97182.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-52625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-53380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103527-89512.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103527-91470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103526-53380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103527-72215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103527-88212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103528-32119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103527-89512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103528-63313.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103528-28727.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103528-57647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103528-48118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103529-73142.png)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103529-39614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103529-33782.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103529-92628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103530-68190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103530-63278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103530-63333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103524-27446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103530-99130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103530-25355.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103523-70704.png)
点评:本题关键是先利用代入法求出
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103531-27795.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103459-69485.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103500-91603.png)
(2)设函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103500-13641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103500-27441.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103500-97649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103500-70626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103452-52006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103452-71992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-75208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-53333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103452-71992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-70751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-22477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-46864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103453-75208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103454-19166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103443-78850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103443-47975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103443-73225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103443-38398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103433-16576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103433-28756.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103428-26547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018103428-59636.png)
最新试题
- 1【题文】集合,,则下列结论正确的是 ( )A.B.=C.=D.=
- 2如图,是一个正五棱柱,作为该正五棱柱的三视图,下列四个选项中,错误的一个是[ ]A.B.C.D.
- 3东西半球分界线是( )A.赤道B.本初子午线C.20°W,160°E组成的经线圈D.北回归线
- 4【题文】(3分)下列各句中,加横线的成语使用恰当的一句是( )A.近年来相继发生“毒奶粉”、“瘦肉
- 5下列选项中对人民币汇率上升影响认识错误的是( )A.原材料进口依赖型厂商购买原材料的成本下降B.有利于中国产品出口
- 6观察下列计算:12+1=2-1,13+2=3-2,14+3=4-3,15+4=5-4…从计算结果中找出规律,并利用这一规
- 7北京时间2010年2月27日14:34,智利发生里氏8.8级特大地震 ,请问智利位于哪两个板块的交界处? [ ]
- 8取生长健壮的小麦根尖,经过解离、漂洗、染色、制片过程,制成临时装片,放在显微镜下观察。欲观察到细胞有丝分裂的前、中、后、
- 9用酒精消毒的原理是[ ]A.溶解作用 B.变性作用 C.盐析作用D.还原作用
- 10(1)某同学用游标卡尺测一工件的长度,测得的结果如图1所示,则该工件的长度L=______ cm.(2)物理研究有许多思
热门考点
- 1填我国农业生产差异表地区耕地类型耕作制度粮食作物油料作物糖料作物北方地区南方地区
- 2It was cool and cloudy _____. [ ]A. all the day
- 32010年,十一届全国人大三次会议通过的新修改的选举法规定,全国人大代表名额按照每一代表所代表的人口数相同的原则分配,将
- 4以下命题正确的有________________.①到两个定点 距离的和等于定长的点的轨迹是椭圆;②“若,则或”的逆否命
- 5科学探究通常可分为______、______、______、______、______ 和表达、交流等几个步骤.
- 6(1)(4分)原子核具有天然放射性,它经过若干次α衰变和β衰变后会变成新的原子核。下列原子核中,有三种是衰变过程中可以产
- 7在盛有足量A的体积可变的密闭容器中,加入B,发生反应:A(s)+2B(g)4C(g)+D(g);△H<0。在一定温度、压
- 8为体现“绿色奥运”“科技奥运”,2008年北京奥运会会出现中国自己生产的燃料电池汽车,作为马拉松领跑车和电视拍摄车,预计
- 9芦花鸡的羽毛(成羽)是一种黑白相问的斑纹状,但在雏鸡阶段的绒羽为黑色且头顶上有一个黄色斑点。控制芦花的基因在Z染色体上,
- 10在北半球,地磁场磁感应强度的一个分量竖直向下(以“×”表示).如果你家中电视机显像管的位置恰好处于南北方向,那么由南向北