(4.6x6.38+3.6x4.6)+9.2 要算式过程..
1/2x4+1/4x6+1/6x8+...+1/198x200 求解题过程及答案.
2x4+4x6+6x8+.+98x100
1x2+2x4+3x6+4x8 ------------------------------- 2x3+4x6+6x9+
算数题 求解1/1X2+1/2X3+1/3X4+1/4X5+1/5X6+1/7X8要过程
(1x2+2x4+3x6+4x8)/(2x3+4x6+6x9+8x12)
请问:汽车的驱动方式4x2,4x4,6x2,6x4,6x6何解?
6x6-4x4怎么会等于6+4)×(6-4呢?
2x2+4x4+6x6+.20x20怎么简便计算
简算:2/2x4+2/4x6+2/6x8+……+2/98xl00
1x1-2x2+3x3-4x4+5x5-6x6.-100x100+101x101
1/2x4+1/4x6+1/6x8+…+1/2010x2012 怎么算!
1/2x4+1/4x6+1/6x8+.+1/2010x2012