已知函数
,将
的图像向左平移
个单位后得到
的图像,且
在区间
内的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317a52c8f94d0de493e085e2af283537.png)
(Ⅰ) 求实数
的值;
(Ⅱ) 在
中,内角
的对边分别是
,若
,且
,求
的周长
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee690249111aeda4526e36bae6c361f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de694144e7993d8a34e6c5d98664d031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317a52c8f94d0de493e085e2af283537.png)
(Ⅰ) 求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ) 在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22702c028a0a2fe4f597fd64cda42e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e658a5aee39ea75e9076aed714ee451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
更新时间:2017-06-03 10:54:31
|
相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】已知向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1ac1bb3e25169cfae03d643e5ae98.png)
(1)若
,求
的值;
(2)令
,把函数
的图象上每一点的横坐标都缩小为原来的一半(纵坐标不变),再把所得图象沿
轴向左平移
个单位,得到函数
的图象,求函数
的单调增区间及图象的对称中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e8869554fcd7f531bf1c29fbfbce5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1ac1bb3e25169cfae03d643e5ae98.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3919d3025f2ac71c46f181218429.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be2dd167392a87d125bfd91ab3cb396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】已知向量
,
,函数
,
.
![](https://img.xkw.com/dksih/QBM/2015/8/13/1572213723824128/1572213729722368/STEM/d066715363e14839a15a2459be0d50a2.png?resizew=254)
(Ⅰ)求函数
的图像的对称中心坐标;
(Ⅱ)将函数
图像向下平移
个单位,再向左平移
个单位得函数
的图像,试写出
的解析式并作出它在
上的图像.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc1a2ec72ef0c8fd5d545352883a124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847f3d8133e5c240f925ea5c4884d4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740710b92f3f3af8f447d1a12799ef81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://img.xkw.com/dksih/QBM/2015/8/13/1572213723824128/1572213729722368/STEM/d066715363e14839a15a2459be0d50a2.png?resizew=254)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(Ⅱ)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d58195ddee2b402fea3c8b60ae79b56.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
(
,
,
)的部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681277772742656/2683316322353152/STEM/275b38f6dcd247d9aea3eacb462217e3.png?resizew=203)
(1)求函数
的解析式和单调递增区间;
(2)将函数
的图象上所有点的横坐标伸长为原来的2倍,纵坐标不变,再将所得图象向左平移
个单位,得到函数
的图象,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec89c3bc454d209007c2b29baeeb3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89040554aa79926881b74fe954e4d08a.png)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681277772742656/2683316322353152/STEM/275b38f6dcd247d9aea3eacb462217e3.png?resizew=203)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a80572887ec8e51c6382349802c409.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1】已知
分别为
内角
的对边,
是
边的中点,
,
.
(1)求
的值;
(2)若
的平分线交
于点
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e6f108d7ae962b900fbbbd2bfd5a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b9062b99c50a01bb2ecde1ddeddb45.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,在梯形
中,已知
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/4/21/2962872194023424/2963678258741248/STEM/9025129a-9975-403a-9ebe-caef56ab42bc.png?resizew=188)
(1)求
;
(2)求
的长;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bdf4abf6b7288e23284dfed6830045b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a774802d0ebfb545c4acbde42f5a1f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab14057df4aa1ace6bb46c7f78fb934.png)
![](https://img.xkw.com/dksih/QBM/2022/4/21/2962872194023424/2963678258741248/STEM/9025129a-9975-403a-9ebe-caef56ab42bc.png?resizew=188)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462a35893afcd7774f5183e738ad506c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次