高温点火 绞对双屏蔽仪表测量电缆J-Y(St)Y Lg & J-2Y(St)Y StⅢBd,电子通讯电缆Li2YCY INTERBUS,Interbus 总线电缆 39-ALiO2YSCY CAN BUS,CAN BUS 总线电缆 39-B,LiO2YSCY PA BUS,Profibus PA 总线电缆 40-A,LiF02YSC11Y-FR CAN BUS,PUR 护套拖链用 CAN BUS 电缆 40-B,02YS(St)C11Y ...
二、给出线性规划问题(20分)MinZ=2X1+3X2+ 5X3+ 6X4\(X1+ 2X2+3X3+ X4≥2-2X1+X2- X3 +3X4≤-3Xj≥0(j=1,…
|2 1| |1 -2|*k 而 |1 0| |-2 1|=1*1-0*(-2); |2 0| |1 1|=2*1-1*0; |2 1| |1 -2|=2*(-2)-1*1. 关于行列式的计算,结果一 题目 空间中已知两个平面的方程,怎么求其交线的方向向量2x+y=2x-2y+z=4|i j k||2 1 0||1 -2 1|=i-2j-5k=(1 ...
WDZA-HPYY-10×2×0.5mm(屏蔽型 多芯信号电缆ZR-DJYPVPR 4*2*1.5联系方式 地址:河北廊坊大城毕演马工业区 邮编:65900 电话:0316-5960132 总经理:王妹尊 手机:15932637551 传真:0316-5960132 微信:15932637551 QQ:591716481 Email:tjdianlan@163.com 产品分类 通信设备电源线 拉力电缆 站内搜索 关键字: 栏...
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STRAPEXPN.1821.163.029 VEM-0227B20R 63 G 6(0.25KW) REXROTHABZFR-S0100-10-1X/M-DIN *EMG检测定位装置(对边)EVK2-CP/ HYDAC备件0330D010BH3HC MTSRHM0570MP101S1G6100传感器 YUKEN电磁换向阀DSG-01-3C2-A220 KHP-20-1114-02X IVOM310R10A0 ...
1XX -y2{1yy4y 1 1 ,直线l的普通方程为x y 6 0 ,由点到直y2X外 X y 2J411x 2y—y 6 0, 4x 3y 24 0.4试题解析:圆 C: x2 y 1 2 1,直线 Lh- F + 6 = 0(1) d L5 5 .22(2) 4x3y 24 0考点:极坐标与普通方程的转化、点到直线的距离公式、矩阵的运算16.如图,在三...
用加减消元法解下列方程组:(1)\(2x+y-2-2+y=5.[2x+y =2 ─x+y=5 (2)\(x-2y-3x+2y=6.Jπ-2y=3 lx+2y=6 (3)\(x+y-3=0x+2y=50.Jx+y=36 x+2y= 50 (4)\(5u-6y=120-6y=10. \(3x-6y-12x+y=11. (5)\(2u-b-83a+2b=5. 2 a -b= 8 |3a+ 2...
RD-H(St)H Bd TKF INDUCOM RE-2X(St)Y-fl TKF INDUCOM RE-2X(St)Y-fl PiMf TKF INDUCOM RE-2X(St)YSWBY-fl TKF INDUCOM RE-2X(St)YSWBY-fl PIMF TKF INDUCOM RE-2X(St)YSWAY-fl TKF INDUCOM RE-2X(St)YSWAY-fl PIMF J-2Y(St)Y St III Bd ...
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