10-11高二下·湖南邵阳·单元测试
解题方法
1 . 已知f(x)=x3+ax2+bx+c,在x=1与x=-2时,都取得极值.
⑴求a,b的值;
⑵若x
[-3,2]都有f(x)>
恒成立,求c的取值范围.
⑴求a,b的值;
⑵若x
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1aed687e8aab91ca960162ca660256.png)
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10-11高二下·湖南邵阳·单元测试
名校
2 . 某物体做直线运动,其运动规律是
(
的单位是秒,
的单位是米),则它在
的瞬时速度为_____________ .(单位:米/秒)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76107f4ded464c1f154c7c65b453b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
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2016-11-30更新
|
423次组卷
|
3卷引用:2010年湖南省洞口四中下学期高二单元数学试题
10-11高二·湖南邵阳·单元测试
3 . 如图,设
为
内的两点,且
,
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
+![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
,则
的面积与
的面积之比为( )
![](https://img.xkw.com/dksih/QBM/2011/6/28/1570247298899968/1570247304003584/STEM/c6480f1f46344b10a3222412757c65ad.png?resizew=198)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b77d22d883e952eb58710084f171e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4be3ede6a6b7c41ca0c65bba86215f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35c91649a5bea2518387a2b36e0c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35c91649a5bea2518387a2b36e0c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c60b5065275b6bf1e5597d2f544e45a.png)
![](https://img.xkw.com/dksih/QBM/2011/6/28/1570247298899968/1570247304003584/STEM/c6480f1f46344b10a3222412757c65ad.png?resizew=198)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高二·湖南邵阳·单元测试
4 . 半径分别为1和2的两圆外切,作半径为3的圆与这两圆均相切,一共可作( )个.
A.2 | B.3 | C.4 | D.5 |
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10-11高二·湖南邵阳·单元测试
5 . 在
中,
分别为
上的点,且
,
的面积是
,梯形
的面积为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a078495ba47076ccaa28b46f765d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460edcced5597615113c0fdc95b1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac1051e69312dc668f3bb6bb14df6cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce735bef8c7fc6a1ddcebd449e38f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75b37405257ec8bd40ef31002d93a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbd8b979ea4b6d8d51176b4af9690ed.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高二·湖南邵阳·单元测试
6 . 如图,在
和
中,
,若
与
的周长之差为
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/2011/6/28/1570247298899968/1570247303880704/STEM/fddfc1922746460a9996b49583302762.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5802aa4aeb8c6ba812176836a03e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6293f10977e09f6bf2be1c49fb2c874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://img.xkw.com/dksih/QBM/2011/6/28/1570247298899968/1570247303880704/STEM/fddfc1922746460a9996b49583302762.png?resizew=145)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.25![]() |
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10-11高二·湖南邵阳·单元测试
7 . 在
中,
、
分别是斜边
上的高和中线,是该图中共有
个三角形与
相似,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.0 | B.1 | C.2 | D.3 |
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10-11高二·湖南邵阳·单元测试
8 .
的割线
交
于
两点,割线
经过圆心,已知
,则
的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45310e9196acd1197e68c5b561423b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
A.4 | B.![]() | C.![]() | D.8 |
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