作者hicoy ()
站内trans_math
标题[多变] 求极值问题
时间Sat Jun 18 23:32:02 2005
空间中2直线 L1={(x,y,x) x=3-t,y=3-t,z=-2+3t t为实数}
L2={(x,y,x) x=1-3T y=6-2Tz=2t T为实数}
之垂直距离?
第2题
Minimize the distance from the point(0,0,0)to the line which is the
intersection of two planes: x+2y+3z=6 and x+3y+9z=9
请问这种类型的要怎麽做?
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.121.213.170