【简答题】求经过点P 1 (2,-1,0).P 2 (3,5,-2)并且与z轴平行的平面方程.
【判断题】One method to spend more money is to use a direct deposit system from payroll.
【简答题】drop off make a difference switch to disposal recycle handle convert into substitute explore regular 6. Some people think it’s wrong to spend money on _______...
【简答题】语法填空 。 Experts say there are several ways to deal with stress. They include deep breathing and a method of guided thought called meditation. They also include exercise, eating healthy foods, getting e...
【简答题】drop off make a difference switch to disposal recycle handle convert into substitute explore regular 6. Some people think it’s wrong to spend money on _______...
【简答题】求经过点(-2,1,3),并且通过两平面2x-7y+4z-3=0与3x-5y+4z+11=O交线的平面方程。
【简答题】求经过直线 并且分别满足下列条件的平面方程: (1)经过坐标原点; (2)与x轴平行; (3)与平面2x-y+5z+2=0垂直.
【简答题】求满足下列各组条件的直线方程:(1)经过点(2,-3,4),且与平面3x-y+2z-4=0垂直高等数学复旦大学出版第三版下册课后习题答案 求满足下列各组条件的直线方程: (1)经过点(2,-3,4),且与平面3x-y+2z-4=0垂直; (2)过点(0,2,4),且与两平面x+2z=1和y-3z=2平行; (3)过点(-1,2,1),且与直线
【简答题】求顶点为(1,2,4),轴与平面2x+2y+z=0垂直,且经过点(3,2,1)的圆锥面的方程.