1 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff182df5607e90450d212afd997b7523.png)
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff182df5607e90450d212afd997b7523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ef9f7f62c00bf7d33d53872472c35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b988d81f63ca329c85840e030f6505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-08-23更新
|
749次组卷
|
2卷引用:河北省张家口市2019-2020学年高三11月阶段检测数学(文)试题
2019高三下·全国·专题练习
2 . 已知双曲线
的一条渐近线与圆
相切,切点在第一象限,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c2bef5c293a098d46919de91c03aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2976a15b87c3b879a6ce73ecb59943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . (选修4-1:几何证明选讲)在圆O中,AB,CD是互相平行的两条弦,直线AE与圆O相切于点A,且与CD的延长线交于点E,求证:AD2=AB·ED.
![](https://img.xkw.com/dksih/QBM/2017/6/1/1699409391165440/1699652214628352/STEM/9743b396f71848a6950fd9e471ee5b55.png?resizew=239)
您最近一年使用:0次
4 . 选修4-1:几何证明选讲
如图,
为
的直径,过点
作
的切线
交
于点
的延长线交
于点
.
![](https://img.xkw.com/dksih/QBM/2016/12/22/1619402851647488/1619402852311040/STEM/4b8c1e8cfa464e90995e6a12224c36a1.png)
(1)求证:
;
(2)若
,求
和
的长.
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eab767f07893891de2f6558d45e9b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f3700c45a84b02f153ea0fb20b4bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2016/12/22/1619402851647488/1619402852311040/STEM/4b8c1e8cfa464e90995e6a12224c36a1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/283c87427f4af230ba9e20ba9446a922.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd2c6dbd4815508d9480ed15277fe5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
5 . 选修4-1:几何证明选讲
如图,已知
与圆
相切,
为切点,
为割线,弦
,
相交于
点,
为
上一点,且
.
![](https://img.xkw.com/dksih/QBM/2016/9/12/1573014847234048/1573014853287936/STEM/7a652be337cc4d25a7aab4a6d67b6a64.png)
(1)求证:
四点共圆;
(2)若
,
,求
的长.
如图,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41bcbf7a137218daf88f1deddd2adc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93949d8a15aca4e79cedb978590571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994e2fc5676a42e4edba54a291236d7c.png)
![](https://img.xkw.com/dksih/QBM/2016/9/12/1573014847234048/1573014853287936/STEM/7a652be337cc4d25a7aab4a6d67b6a64.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a511ffe1a6617f45c48748a16372cd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5a0689f27f06ebd8468e4a5cbab799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034a9d2e093d0040c609450c3a344cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
您最近一年使用:0次
6 . 四棱锥
中,底面
为矩形,
底面
,
,
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/5e724cabb3654b1892fbac1314ec580e.png)
(Ⅰ)求证:
平面
;
(Ⅱ)设
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6153163fecdf3f410411048428ccaef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458f4503e211b542f6f30c8a34eaca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b917803e66b0e3f79e56ad282b2d0613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433330447c4947540b3dc52719659681.png)
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/5e724cabb3654b1892fbac1314ec580e.png)
(Ⅰ)求证:
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/c1e762d7c9ce4d4eac8b2aa27c7ee784.png)
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/6df3f41abf424ef6a0418c4490bd5525.png)
(Ⅱ)设
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/22d4b545221d4eabb7f2901cbedc51ad.png)
![](https://img.xkw.com/dksih/QBM/2016/9/1/1572995558965248/1572995564994560/STEM/4d3d3678c5bd4823a31330ed990196f8.png)
您最近一年使用:0次
2016-12-04更新
|
64次组卷
|
2卷引用:2016届河北沧州市高三4月调研数学(文)试卷
7 . 选修4-1:几何证明选讲
如图,已知
点在
直径的延长线上,
切
于
点,
是
的平分线,交
于
点,交
于
点.
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/d52e779d97bb460faada2db92d1a9f55.png)
(1)求
的度数;
(2)若
,求
.
如图,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e763a7d8149039c8107d6bc73deec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/7d3f92b64e3b4011b73028f0938c7021.png)
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/201ddb4dde114fff920f9455dc6b77a1.png)
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/d52e779d97bb460faada2db92d1a9f55.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/26e2d3924ff2402a920e450db6c13f41.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/ccc27bbcfc7c47fc8d81a090cf758139.png)
![](https://img.xkw.com/dksih/QBM/2016/8/3/1572949750628352/1572949756289024/STEM/b51f8f7da96a485ebc98951ce82a0f6a.png)
您最近一年使用:0次
8 . 选修4-1:几何证明选讲
圆
是以
为直径的圆,延长
与
交于
点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/0af4c3ca-0cdd-4590-b9fa-8c30228df30a.png?resizew=183)
(Ⅰ)求证:
是圆
的切线;
(Ⅱ)
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5762def25feb1ab47465e2d629a8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/0af4c3ca-0cdd-4590-b9fa-8c30228df30a.png?resizew=183)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(Ⅱ)
![](https://img.xkw.com/dksih/QBM/2016/7/12/1572913900216320/1572913906786304/STEM/5587f10125244c48927f92d3b4c46728.png)
![](https://img.xkw.com/dksih/QBM/2016/7/12/1572913900216320/1572913906786304/STEM/56db4f8204bd4e78afc69c77d0c6d2f3.png)
您最近一年使用:0次
2016-12-04更新
|
115次组卷
|
2卷引用:2016届黑龙江哈尔滨六中高三下四模考试文科数学试卷
9 . 如图,已知圆
是
的外接圆,
是
边上的高,
是圆
的直径.
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/de6fa6317d364901817490bd3f2571aa.png)
(1)求证:
;
(2)过点
作圆
的切线交
的延长线于点
,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47d64e7cd6c3179394120d007ff12a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/de6fa6317d364901817490bd3f2571aa.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/f2fa1e4d40994e2e86c45eba0159a68f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/7c22a079c5f945cb925441033bbf1d30.png)
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/0d679278c1b14071a0c0973e3b5ca669.png)
![](https://img.xkw.com/dksih/QBM/2016/5/9/1572625066704896/1572625072816128/STEM/0eed3d0155cb4612b71d2d17bf6712e5.png)
您最近一年使用:0次
10 . 如图,已知
是
中
边上的高,以
为直径的
分别交
、
于点
、
,点
是
的中点.
.
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/484a4ff298fa40148dd274ba3b2ea624.png)
(1)求证:
是
的切线;
(2)求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/05408a25b4b24591a105b31ce1f050b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/4a8063f6be2142b3a68f4d8e067cad24.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/484a4ff298fa40148dd274ba3b2ea624.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880be04496b4e06b1c47d433d880b442.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/cf3b73a035634bf6a2aec0719e339f8c.png)
(2)求
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572587514535936/1572587520811008/STEM/b060012edc4b4489a1327c801ce2121f.png)
您最近一年使用:0次