题目
题型:填空题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-51179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-67987.png)
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-15369.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-83897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-22019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172518-27816.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172518-70727.png)
解析
试题分析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172518-63170.png)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172518-47398.png)
因为:
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172518-20402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172519-78000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172519-98107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172519-62389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172519-95256.png)
(2)由(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172520-50644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172520-39027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172520-58217.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172520-52423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172520-78644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172521-71160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172521-23152.png)
所以,
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172521-82783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172521-98170.png)
不妨设
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172521-63349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172522-63629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-83897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172517-22019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172522-31483.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172522-67391.png)
核心考点
试题【已知函数在区间上的最大值为3,则(1)= ;(2)当在上至少含有20个零点时,的最小值为 .】;主要考察你对正弦函数的图象与性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172514-81254.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172443-73424.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172443-49000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172443-93616.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172444-31948.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172444-38986.png)
(2)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172444-38986.png)
(3)用“五点法”作出函数
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172444-38986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172411-90668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172412-28842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901172412-25560.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.y=sin![]() | B.y=cos![]() |
C.y=sin ![]() | D.y=cos ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901171314-84766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901171314-38624.jpg)
A.y=-4sin ![]() |
B.y=4sin ![]() |
C.y=-4sin![]() |
D.y=sin ![]() |
最新试题
- 1. It is his clothes, hairstyle and the way _____ he walks __
- 2气象资源是自然资源的重要组成部分,随着科学技术的发展,气象资源的开发利用变得越来越重要,世界上许多国家十分注重把气象资源
- 3有三瓶无色无味气体分别是氧气. 氮气. 空气,请用实验方法区别它们,并填写出实验报告。实验步骤实验现象和结论
- 4小明同学探究“通过导体的电流与电压的关系”时,电路图与实物图如图所示.已知电源电压和电阻R1的阻值均恒定,电流表A的量程
- 5如果|x﹣2|+(x﹣y+3)2=0,那么(x+y)2=( )
- 6为了测量一个阻值较大的末知电阻,某同学使用了干电池(1.5 V),毫安表(1 mA),电阻箱(0-9999 Ω),电键,
- 7甲、乙两列火车在平直的轨道上匀速前进,当它们行驶的路程比是3:4时,所用的时间比是2:3,那么两列火车行驶的速度比是(
- 8下列各句没有语病的一项是A.由辛亥志士后裔、民间爱心人士联合兴建的“辛亥首义百年纪念墙”,包括纪念广场、英雄名录、首义第
- 9某学生用0.100 mol·L-1的KOH标准溶液滴定未知浓度的盐酸,其操作可分解为如下几步: a.移取20 mL待测盐
- 102011上半年,四川省通过“帐篷新生活”行动,共为藏区牧民发放9.99万顶新型帐篷,占全年目标任务的98%以上。在彝家新
热门考点
- 1Growing strawberries in pots·The best way to start growing s
- 2【题文】午宴上,某中学生遇到父母的朋友劝酒,下列回应得体的一项是(
- 3Many people felt it was a pity that the ancient tower was
- 4下列词语中加点字的注音,没有错误的一组是()A.框(kuānɡ)架嬗(shàn)变洗涮(shuàn)舐(shì)犊情深B
- 5下图漫画中厂长的“是非观”错在[ ]A.认为价值判断与价值选择具有多元性 B.不符合价值判断与价值选择的最高标准
- 6-Students should try to do a little studying every evening t
- 7六种短周期主族元素A、B、C、D、E、F的原子序数依次增大,其中A与E周主族,B与F同主族.已知常温下单质A与E的状态不
- 8阅读下面文字,完成下列各题。 ①美国著名的心理学专家安东尼·罗宾在《唤醒心中的巨人》一书中指出:“每个人身上都蕴藏着一
- 9设NA表示阿伏加德罗常数的值,下列叙述正确的是A.1L 0.1mol·L-1的CH3COONa溶液中CH3COO-的总数
- 10小芸在为班级办黑板报时遇到了一个难题,在版面设计过程中需将一个半圆面三等分,请你帮助她设计一个合理的等分方案.要求用尺规