已知
,(
,
为常数
),且
(
为坐标原点).
(1)求
关于
的函数关系式
;
(2)若
时,
的最大值为
,求
的值;
(3)在满足(2)的条件下,说明
的图象可由
的图象如何变化而得到?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f960333280424428cd8bb0509fe15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22958b278bbf3e10a4dc4b27926034e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6057a23e5acb7c547a368f8e1651a7ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在满足(2)的条件下,说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
2011高三·广东肇庆·专题练习 查看更多[1]
(已下线)2012届广东省肇庆市封开县南丰中学高三复习必修4测试C
更新时间:2016-12-01 11:29:42
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
在
上的最大值为3.
(1)求
的值及函数
的单调递增区间;
(2)若锐角
中角
所对的边分别为
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd99959adda4d0ebda1b8aa70e9ed471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ec18aa8ab6f4a4e70722e4df77c9c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a30cdeccc312028502c30ca324d62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
您最近一年使用:0次
【推荐2】正弦信号是频率成分最为单一的信号,复杂的信号,例如电信号,都可以分解为许多频率不同、幅度不等的正弦型信号的叠加.正弦信号的波形可以用数学上的正弦型函数来描述:
,其中
表示正弦信号的瞬时大小电压V(单位:V)是关于时间t(单位:s)的函数,而
表示正弦信号的幅度,
是正弦信号的频率,相应的
为正弦信号的周期,
为正弦信号的初相.由于正弦信号是一种最简单的信号,所以在电路系统设计中,科学家和工程师们经常以正弦信号作为信号源(输入信号)去研究整个电路的工作机理.如图是一种典型的加法器电路图,图中的三角形图标是一个运算放大器,电路中有四个电阻,电阻值分别为
,
,
,
(单位:Ω).
和
是两个输入信号,
表示的是输出信号,根据加法器的工作原理,
与
和
的关系为:
.例如当
,输入信号
,
时,输出信号:
.
![](https://img.xkw.com/dksih/QBM/2023/4/25/3224015647916032/3224361384140800/STEM/e75ced3da0fb4e66a4f546449ffacf19.png?resizew=255)
(1)若
,输入信号
,
,求
的最大值;
(2)已知
,
,
,输入信号
,
.若
(其中
),求
;
(3)已知
,
,
,且
,
.若
的最大值为
,求满足条件的一组电阻值
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa536bab419a2c49145db7d3584c066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ac562e5ac2ebbc5982b4e2e20e88a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a16d6967d4b35fd028264b5b4c9459b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2c4640b2bee411935f588fc5433c74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e2599548b7b123f3c8d0b91aacd5de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61359b33f8d3d33e07adcaf28116b197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5137a145c21f194bef7a7ec110a9de6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68894d53f9274ba54a34e3c485fb34e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68894d53f9274ba54a34e3c485fb34e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61359b33f8d3d33e07adcaf28116b197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5137a145c21f194bef7a7ec110a9de6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9731ce70ad342274d2a1bdef18b25578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a450b44cb8e6ff7c8410396352d363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cd40b19ff105a0387ee58765155477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4292cad692a0322fa9fb3c5932836658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cacbe9bf09e8345c6ffd37d18df12.png)
![](https://img.xkw.com/dksih/QBM/2023/4/25/3224015647916032/3224361384140800/STEM/e75ced3da0fb4e66a4f546449ffacf19.png?resizew=255)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a450b44cb8e6ff7c8410396352d363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cd40b19ff105a0387ee58765155477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4292cad692a0322fa9fb3c5932836658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68894d53f9274ba54a34e3c485fb34e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1bde887662bc9bed664b5f9c151529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd7252bd86ce2d11eb387e0f4962b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f950eccff894fce3c80b64897146fc44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862b74828649bc692c9be846065bbc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafc76af5689d40fee6b004a7a12d6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1a19f2a31c0c15ba15aebdb63f368f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f33d476e37e70f7c720386dfdbd1f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ff5385ac347af2c612009d412c00b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757d05fcbfea8e925ed5382dbd051fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cd40b19ff105a0387ee58765155477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db087e0f05028cf086902dcc0784e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68894d53f9274ba54a34e3c485fb34e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知函数
.
(1)求
的单调递增区间与对称轴方程;
(2)设
.当
时,
的取值范围为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2944a3b3241a68ec7d2b7b118dc0192.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e22f887f4451330a03863828a7c184f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf22a342373c046f8f44c1221c8b36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
的部分图象如图所示.
的解析式;
(2)求
的对称轴方程;
(3)求
的单调递增区间;
(4)函数
的图象经过怎样的变换能得到函数
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bd4c25fa2436946ecc556276445288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(4)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c65d71e57e6e7697e2f627dcd58583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】函数
在同一个周期内,当
时
取最大值
,当
时,
取最小值
.
(1)求函数的解析式
;
(2)函数
的图象经过怎样的变换可得到
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25582f9d4e66dc15db1e8b00d4a3208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6461468072bd27afd53fd5f9c3bf344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b283eb08db6f602ede1ae542c5e3662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求函数的解析式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
.
(1)若△ABC的三个内角A、B、C的对边分别为a、b,c,锐角A满足
,求锐角
的大小.
(2)在(1)的条件下,若△ABC的外接圆半径为1,求△ABC的面积S的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b4bc0c98439d43ad12c84e142afc68.png)
(1)若△ABC的三个内角A、B、C的对边分别为a、b,c,锐角A满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fe2628e12b447810eb4d604181f4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在(1)的条件下,若△ABC的外接圆半径为1,求△ABC的面积S的最大值.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】
中,
,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176a512a8e931c56d85607764f48851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef2b9ffa99f7c21a312a7a33c45de59.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知圆
,
,若斜率为
的直线l与圆C相交于不同的两点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/758945acc684c1442e553036ef652911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc59979afc2620b046822c643391168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知点
,B
,设函数
,其中O为坐标原点.
(1)求函数
的最小正周期;
(2)当x∈
时,求函数
的最大值与最小值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94078d22704a03e9e5194ad3bf3e6085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2989727be87a6d5243fb43973a8a8b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a972967fa1f886c5917c7ce68bbfad.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当x∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6528c80296d536d49ad2eefe2770515e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知向量
,其中
,记
,且
的最小正周期为π
(1)求
的单调递增区间;
(2)在△ABC中,角A,B,C所对的边分别是a,b,c,且满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1d76cab220c373df98bce2db5e6afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae9f908aabcd9d9c46a0ecdfd1d6c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在△ABC中,角A,B,C所对的边分别是a,b,c,且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24e449f081e81f3d0c47a64240e8e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817352dc4f689ea29b7888456abfafe1.png)
您最近一年使用:0次