COME!HELP ME 在面积为1的三角形PMN中,tan角PMN=1/2,tan角MNP=-2,适当建立坐标系,求以MN为焦点,且过P点的椭圆方程.

COME!HELP ME 在面积为1的三角形PMN中,tan角PMN=1/2,tan角MNP=-2,适当建立坐标系,求以MN为焦点,且过P点的椭圆方程. PLEASE Come In .I HOPE You Can Help Me!如图,△ABC的面积为1,分别取AC,BC两边的中点A1,B1,记四边形A1ABB1的面积为S1;再分别取A1C1,B1C的中点A2,B2,记四边形A2A1,B1B2的面积为S2；再分别取A2C,B2C的中点A3,B3,.,依次 学霸,come help me,come on 数学好的come in to help me ,please! can someone else come to help me out?come to help me!在一道减法算式里,被减数、减数、差三个数相加的和是1,若差是0.05,则减数是多少? come to my help 是“来帮助我”的意思,那么 come to help me 不是“来帮助我”的意思吗? 英语翻译help me 1 ( ) 6.Can you come and help me my Maths? Can you come and help me,plesse是什么意思问问 连词成句over ,me can,come,help,you,and? come and help me today evening哪里错了 Come and help me c____ up the meat me的用法Peter,come and help with the housework.Why me?Susan is doing nothing there.句中为什么用me? help help help me help!help!help me 在自然数1~20中,即是奇数又是质数的数有~help me~ whenever l' m in trouble,he will come to help me.请问这句话的 will的意思是什么