题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-56691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-46536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-76464.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-46613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-37368.png)
(3)讨论关于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-53005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-95170.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-64422.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-91990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-32238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-24062.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-16450.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-62913.png)
解析
试题分析:(1)由题意由于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025218-66649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025218-58045.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025218-15835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
(2)由对所有满足条件的实数及对任意
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025218-25968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-84682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025218-25968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-52706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-54366.png)
(3)利用方程与函数的关系可以构造成两函数图形的交点个数加以分析求解.
试题解析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-87572.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-57420.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025220-73210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025220-80399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025220-83936.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-64422.png)
(2)由题意
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025219-54366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025220-66238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025221-17649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025221-31536.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025221-44927.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025221-10110.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025221-78228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025222-81464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025222-76575.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025222-73498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025222-28078.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025222-13943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025223-26504.png)
综上,
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-91990.png)
(3)由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025223-23248.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025223-68366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025223-18494.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025224-45487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025224-82428.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025224-24944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025224-98400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025224-49078.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025225-72990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025225-14235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025225-65046.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-16450.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025217-62913.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-45731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-67079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-30306.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-60191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-18476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-96191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-29492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-90386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-80166.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.(-3,0)∪(3,+∞) | B.(-3,0)∪(0,3) |
C.(-∞,-3)∪(3,+∞) | D.(-∞,-3)∪(0,3) |
(1)求函数f(x)的解析式;
(2)求函数f(x)的单调增区间,并求函数f(x)在[-1,3]上的最大值和最小值.
(1)当a=0时,f(x)≥g(x)在(1,+∞),上恒成立,求实数m的取值范围;
(2)当m=2时,若函数h(x)=f(x)-g(x)在[1,3]上恰有两个不同的零点,求实数a的取值范围.
最新试题
- 12011年四川汶川大地震3周年之际,第十一世班禅额尔德尼·确吉杰布为在遇难同胞举行了祈愿法会。班禅是藏传佛教活佛转世的称
- 2保护生物多样性是实现人类社会可持续发展的基础。下列对生物多样性的理解正确的是[ ]A.生物多样性的丰富程度与自然
- 3“中国欲自强,则莫如学习外国利器;欲学外国利器,则莫如觅制器之器。”在此观点指导下,中国兴起了A.太平天国运动B.义和团
- 4It’s hard to make friends if you stay at home alone all the
- 5一个直径为32厘米的圆柱形水桶中放入一个铁球,球全部没入水中后,水面升高9厘米则此球的半径为 ______厘米.
- 6反比例函数y= (k>0)在第一象限内的图象如图,点M是图象上一点,MP垂直x轴于点P,如果△MOP的面积为1,那
- 7已知△ABC中,点A、B、C的坐标依次是A(2,-1),B(3,2),C(-3,-1),BC边上的高为AD,则的坐标是:
- 8已知|a|=5,=7,且|a+b|=a+b,则a﹣b的值为[ ]A.2或12B.2或﹣12C.﹣2或12D.﹣2
- 9 小明参加暑假夏令营爬一座山峰,出发时小明用温度计测得山下的温度是28℃,爬到山顶后测得的温度是19℃,按照温度垂
- 10现有质量相同的氧气、二氧化碳、氯酸钾、铜四种物质,哪一种物质含的原子最多( )A.氧气B.二氧化碳C.氯酸钾D.铜
热门考点
- 1阅读下列文言文,然后完成所给问题。 张衡,字平子,南阳西鄂人也。衡少善属文,游于三辅,因入京师,观太学,遂通五经,贯六
- 22012年2月13日,***副主席开始了对美国的正式访问,这次访问称为“探索之旅”。***强调,中国政府将继续从本国国情
- 3元代是中国戏曲的黄金时代,杂剧、散曲、南戏等都取得巨大成就,后世将其与唐诗、宋词并称。后人则充分肯定元曲的艺术风格,称其
- 4培养自立能力最基本的就是[ ]A.立足于当前的生活和学习,从小事做起 B.得到父母的各方面帮助C.得到社会的特殊
- 5下列国家中不属于人口超过1亿的亚洲国家的是 [ ]A.印度尼西亚 B.印度 C.墨西哥
- 6如图,在△ABC中,AC=BC=2,∠ACB=90°,D是BC边的中点,E是AB上一动点,则EC+ED的最小值是 .
- 7阅读下面的文字,完成后面习题。(12分,每小题3分)白 居 易 传[元]辛文房居易字乐天,太原下邽人。弱冠,名未振,观光
- 8老师早上上课时问好,Good morning, class! 同学们回答:_____ [ ]A. He
- 9(15分)阅读下列材料,结合所学知识回答问题。材料一:“秦王扫六合,虎视何雄哉!挥剑决浮云,诸侯尽西来。”——李白材料二
- 10It’s common sense that in summer people like to seek shade