解答题-问答题
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较难(0.4)
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1 . 如图,⊙O的半径为1,等腰直角三角形ABC的顶点B固定且坐标为(
,0),顶点A在⊙O上运动,始终保持
CAB=90°,AC=AB
(1)当点A在x轴上时,求点C的坐标;
(2)当点A运动到x轴的负半轴上时,试判断直线BC与⊙O位置关系,并说明理由;
(3)设点A的横坐标为x,△ABC的面积为S,求S与x之间的函数关系式,并求出S的最大值与最小值;
(4)当直线AB与⊙O相切时,求AB所在直线对应的函数关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
(1)当点A在x轴上时,求点C的坐标;
(2)当点A运动到x轴的负半轴上时,试判断直线BC与⊙O位置关系,并说明理由;
(3)设点A的横坐标为x,△ABC的面积为S,求S与x之间的函数关系式,并求出S的最大值与最小值;
(4)当直线AB与⊙O相切时,求AB所在直线对应的函数关系式.
![](https://img.xkw.com/dksih/QBM/2017/3/20/1647770483597312/1652861047259136/STEM/6175ee433a944519a6693d998f90d06a.png?resizew=182)
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2 . 如图,在边长为4的正方形ABCD中,P是BC边上一动点(不含B、C两点),将△ABP沿直线AP翻折,点B落在点E处;在CD上有一点M,使得将△CMP沿直线MP翻折后,点C落在直线PE上的点F处,直线PE交CD于点N,连接MA,NA.则以下结论中正确的有 (写出所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/2016/8/5/1574227849568256/1574227855802368/STEM/8bcedec624ca4e92bb4b9d9428bcd8bd.png?resizew=165)
①△CMP∽△BPA;
②四边形AMCB的面积最大值为10;
③当P为BC中点时,AE为线段NP的中垂线;
④线段AM的最小值为
;
⑤当△ABP≌△ADN时,BP=
.
![](https://img.xkw.com/dksih/QBM/2016/8/5/1574227849568256/1574227855802368/STEM/8bcedec624ca4e92bb4b9d9428bcd8bd.png?resizew=165)
①△CMP∽△BPA;
②四边形AMCB的面积最大值为10;
③当P为BC中点时,AE为线段NP的中垂线;
④线段AM的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e9d0e63d7ec8ddf95482bf0bc5b144.png)
⑤当△ABP≌△ADN时,BP=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e915136525246b76dca58d7cdf3619a.png)
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6卷引用:【校级联考】湖北省十堰市部分学校2019届九年级3月月考数学试题
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3 . 如图,已知抛物线
与
轴的正半轴交于点
,点
在抛物线上,且横坐标为2,作
轴于点
,
经过原点
,点
为
上一动点,点
在
上.
(1)求点
的坐标;
(2)如图1,连接
,当
时,求证:
;
(3)如图2,当点
是
的中点时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e881f34fb1fff84838eafb0642ed80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b45db8dd8768994af51206565379fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/5fcf36c1-e8e3-4184-b641-c3d45d237e52.png?resizew=353)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76235ece36d478120811df92b62aded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b41d938f1bf12debbb0063594adf8ec.png)
(3)如图2,当点
![](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/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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4 . 如图,在菱形
中,对角线
相交于点O,
,
.动点P从点A出发,沿
方向匀速运动,速度为
;同时,动点Q从点A出发,沿
方向匀速运动,速度为
.以
为邻边的平行四边形
的边
与
交于点E.设运动时间为
,解答下列问题:
上时,求t的值;
(2)连接
.设
的面积为
,求S与t的函数关系式和S的最大值;
(3)是否存在某一时刻t,使点B在
的平分线上?若存在,求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c75a3fd02e4971cab421c88de92f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd4a1c8087ef697d82b321a3331211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc9127508c14e2247397d024884ddf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940060c97feb69438eb2877721019f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10387ddaa479686b10fd345ed21c7197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2f59934a41324b82fc37188282abbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba8a7ce19548adba34a16080230360d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9091bc1886a3fd3d17160b2d41ded.png)
(3)是否存在某一时刻t,使点B在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67e3685787de6e03cac347967a487da.png)
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5 . 如图,在平面直角坐标系中,抛物线
与x轴交于点
,
与y轴交于点B,已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/3bef4347-1ebc-4993-87c2-71135bf5fecb.png?resizew=340)
(1)求抛物线的函数表达式;
(2)如图1,点P为抛物线上的点,且点P的横坐标为3,F是抛物线上异于点P的点,连接
,当
,求点F的横坐标;
(3)如图2,点Q为直线
上方抛物线上一点,
交
于点D,
交
于点E.记
,
,
的面积分别为
,
,
.求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e84f5c91c910aaafc5e74dbfbdf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2f117dc9adcb8fa7acf25bd2cbf283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01831e1f8a6094abacfb2df3ceba7237.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/3bef4347-1ebc-4993-87c2-71135bf5fecb.png?resizew=340)
(1)求抛物线的函数表达式;
(2)如图1,点P为抛物线上的点,且点P的横坐标为3,F是抛物线上异于点P的点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb630ea75318626934df0b44e40e7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05308b52fb64bb14d30105344aea32b9.png)
(3)如图2,点Q为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d57c5366753582457cc87de6e90b302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d538e2d315324cd69bedc4b362485c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0aa4a44d13177b082ae3874dfdc6316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61561dcdd722c6fbe4447e6cec05c118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398f2557943357934d2858366fdbb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b2a89833c363fe06a5ae1524fa65144.png)
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3卷引用:湖南省长沙市雅礼实验中学2022-2023学九年级下学期3月考试数学试卷
6 . 如图,在
中,
,P是线段
外一动点,
,连接
,将线段
绕点P逆时针旋转
得到线段
,连接
,下列判断正确的是( )
结论Ⅰ:当点P落在线段
上时,
的长为7;
结论Ⅱ:
长度的最大值为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/89f29c5d-a858-443a-b6c5-ea60e38476dd.jpg?resizew=138)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fe75f967e8915c9124a5d4ac420a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638d9cccb679214718224c3088ed4a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a0387fc1258f31e44a10068c0ccfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48943db264c08adaf6ae0766fd56459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532b3981b59bbc3bd1a3fe16f92a3027.png)
结论Ⅰ:当点P落在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
结论Ⅱ:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf1e2d948d05a9f988d61f4518a74a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/89f29c5d-a858-443a-b6c5-ea60e38476dd.jpg?resizew=138)
A.结论Ⅰ、Ⅱ都对 | B.结论Ⅰ、Ⅱ都不对 |
C.只有结论Ⅰ对 | D.只有结论Ⅱ对 |
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7 . 如图,直线
与
轴、
轴分别相交于
、
两点,抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103a1a7a348f87d89ec89af9e1bb3328.png)
经过点
,交
轴正半轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/a6b98688-055e-4cf2-94d2-1fee95c85e63.png?resizew=298)
(1)求该抛物线的函数表达式;
(2)已知点
是抛物线上的一个动点,并且点
在第一象限内,连接
、
,设点
的横坐标为
,
的面积为
,求
与
的函数表达式,并求出
的最大值及此时动点
的坐标;
(3)将点
绕原点旋转得点
,连接
、
,在旋转过程中,一动点
从点
出发,沿线段
以每秒
个单位的速度运动到
,再沿线段
以每秒
个单位长度的速度运动到
后停止,求点
在整个运动过程中用时最少是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6f2dede1bb4e23ad8d5a9059d5192f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103a1a7a348f87d89ec89af9e1bb3328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396f2055f52c0c2ce16a6d456df2ae51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/a6b98688-055e-4cf2-94d2-1fee95c85e63.png?resizew=298)
(1)求该抛物线的函数表达式;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4201d3bead2e48cc80052b1418f23db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)将点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037b1a3ec2e37bbcb05d0a467efb511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12daf5fea89631b84f896939c503d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12daf5fea89631b84f896939c503d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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8 . 如图,在
中,
,在
的外部和内部(不在边上)分别取一点
,
,若
,
,
,
的补角等于
,
则下列结论:
①点
在线段
的垂直平分线上;②
;
③
;④
的最大值是14.
其中正确的结论是_________ .(填写所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffdfaf8ba10c7a0250437f4a317c5f44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
则下列结论:
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb6e71754d3e73fb4939ee00f24ab9c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27beebe45dba8f91743aab21f15b39b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
其中正确的结论是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/24/b1e882c9-5def-44a5-aa68-d1d03275c01b.png?resizew=238)
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9 . 如图,抛物线
与x轴交于A、B两点,与y轴交于点C,直线
过B、C两点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/74af511b-d142-4ce5-a150-d6b0e12ed5b9.png?resizew=200)
(1)求抛物线的解析式;
(2)求证:
;
(3)抛物线对称轴上是否存在点P使得
的最小值,若存在,求出点P坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c9800e4b992044d16681e77ff6563c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9118cc77fc0a045337745890e50cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/74af511b-d142-4ce5-a150-d6b0e12ed5b9.png?resizew=200)
(1)求抛物线的解析式;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767bcca107034191460cd6fe3f17e7bf.png)
(3)抛物线对称轴上是否存在点P使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1441093334b71f88954eed46804c316c.png)
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22-23九年级上·安徽芜湖·阶段练习
10 . 已知
是等腰直角三角形,
.过点A作
于点D,点P是直线
上一点,以
为边,在
的下方作等腰直角三角形
(如图),连接
,则
的最小值为( )
![](https://img.xkw.com/dksih/QBM/2023/1/4/3145702307627008/3146462564892672/STEM/19f1d942af944de89d12af8d968d69bc.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a718a85add40589bbf788876a755a88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://img.xkw.com/dksih/QBM/2023/1/4/3145702307627008/3146462564892672/STEM/19f1d942af944de89d12af8d968d69bc.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.1 |
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