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用二分法求方程在区间内的根, 已知误差限, 确定二分次数使dc53b960585dcc6b0ab65896ce8ac3bf.png5dfefc3635792e3513175c3dc30ffe44.pngb0d374bfdc6b83fbdd65d2faf899625e.pngd4607e901fb44e032eb6a63a69a9a700.png4d8f45ef047d47be3ccbab87a6d33567.png
设矩阵,其中均为4维列向量,且已知行列式,则行列式( ).a1740ea852b090970a4f15671ac8d3bd.gif4bdf1d51f59dc6b6f0c5e0cbf782fcd8.gif1d95c27b21ce3b9a932230394cc7f89f.gifca660e41a076abcfd9a9c5241d6724d1.gifcf35d93d2f422745ec5a9fb8aba1f371.gif612d0e4338a802011c7b6e5e5146fe31.gif
设函数在区间内有定义,若当时,恒有,则必是的 ( ) 。1647aea215b9a2a41c2e190429e2bc9c.png7f8eb3d79ceb72092ab599e84bf2a05a.png2342fcbf80478633f876d112eabc9c3a.png4b4f9da274a316d2bd0db008700cb0d0.png22768c2014d088c6c1581ed8ed9dfcaf.png1647aea215b9a2a41c2e190429e2bc9c.png
设在处可导,则 .1fab05a62ab599740f686c7fa97b8315.png30cfe31de629e8e6191d232b289940c9.png0b349ce40854032b1a76c15681ff6a40.png
设曲线取逆时针方向,则()867ce806b4d2fa1164a0ced9759ab132.pngbd481f5790ffc1316c7d1d5e3a01d47b.png
函数在处取得极大值,则 ;be582941ef00d2beaafd6eb3a0cd45f3.pnga775d86649e642c7c1f1eb3747a517dc.pngac376d0ee465a5a009b41c11cc28976a.png
函数在连续,则为 ( )79c7e02163af714ee0ef979fef2fa0d6.png40561d5d6490338311f178bd623bc992.png1bbae2c39697ae555139d1742c5d815c.png
在平行移轴定理,中,a和b分别为任意平行轴y与y0和z与z0之间的距离。81770e448698b3ad706aa300593ce774.gifa952d2dcd299b802dee58d454f84c9b2.gif
它的接触网上供电制式是( )。它的接触网上供电制式是( )。4dd0bc5e9bf7693844b63070536d2ce1.pnge9ae42707597d50a8373f97fec76eaca.jpg
单样本K-S检验的统计量 中 是一个n次观察的随机样本观察值的( )。168f37a56a281d324255b9d80937f60a.gifbdf083963d2ac995b81fd278abc632ce.gif
方程存在( )个根.56d2d29739131f73b8352b637b9fd71e.png
Calculate the values of ib. ( )e26f39c875e42bf0b25a8fa7fe04d2fa.png
设 , 则 在区间[0,1]上的最大值是48e5627232d2f1b87274bf391647585d.gifac90d828d56712de07fe6c15b15374c3.gif
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在某地以相同大小的初速度(v1=v2)而发射角不同,斜抛两个质量相同的小球,若空气阻力不计,对选定的坐标系Oxy________是相同的,_____是不同的。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/c3bc6a9d123a470cb14cdc7059e805d2.png
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此手势动作表示 “写”。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/88d2b4405b9f461d98c9bdc1e45a15fc.png
如图所示,钢板:BC上作用一载荷F=20k N,杆AB的直径d1=20mm,杆CD的直径d2=15mm,下列选项关于杆AB,CD强度计算有误的一项为()。<img src='https://img2.soutiyun.com/ask/uploadfile/5676001-5679000/a4c976878c6bf574201fd46b27d8e3fa.jpg' />
如图2-2,两条斜率不同的线性需求曲线D1和D2在E点相交,在该点()。<img src='https://img2.soutiyun.com/ask/uploadfile/2268001-2271000/4fc3fa773ba3ff1b4a790c7f86a536e7.jpg' />
根据下列条件,回答 81~85 题:某大型企业生产的产品包括空调、电扇、洗衣机等多种家用电器。该公司的组织结构示意图如下:<img src='https://img2.soutiyun.com/ask/uploadfile/2631001-2634000/dd1146b9d09b6c32d2d8c0595ce4d7f8.jpg' />第 81 题 该公司的组织结构属于()部门。
下列选项中,符合所给图形的变化规律的是()。<img src='https://img2.soutiyun.com/ask/uploadfile/4491001-4494000/c6786e290d12cf79356d2d93b9b94cec.jpg' />
梁AC与BC的抗弯刚度EI相同,用中间铰链C连接如图,则BC梁中点D的挠度为<img src='https://img2.soutiyun.com/ask/uploadfile/2814001-2817000/4ae0b6224ed9284e0e2878796d2d1055.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2814001-2817000/a38ca75c5431b6eba491f4ee18aacfd3.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2814001-2817000/e15dabaf6d4cbf7234174c0102d8fa1a.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2814001-2817000/3f22e5cbe05b4a8790e8ccc446d2e4fa.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2814001-2817000/aee3769961ec6a4357ced240ac904195.jpg' />