简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 16:58:19
简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128

简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128
简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128

简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128
（1/8+1/24+1/48+1/80+1/120+1/168+1/224+1/288）*128
=[1/8+1/2(1/4-1/6+1/6-1/8+1/8-1/10+1/10-1/12+1/12-1/14+1/14-1/16+1/16-1/18)]*128
=[1/8+1/2*(1/4-1/18)]*128
=128*1/8+128*1/2*1/4-128*1/2*1/18
=16+16-32/9
=32又9分之8

简算:(8/1+24/1+48/1+80/1+120/1+168/1+224/1+288/1)×128 简算 8分之1+24分之1+48分之1 (8分之1+24分之1+48分之1+80分之1+120分之1+168分之1+224分之1)×64简算 1/8+1/24+1/48+1/80 1/8+1/24+1/48+1/80简便计算 (1/8+1/24+1/48+1/80+1/120+1/168+1/224)*64= (1/8+1/24+1/48+1/80+1/120+1/168+1/224)乘64 (1/8+1/24+1/48+1/80+1/120+1/168)简便计算 （1/8+1/24+1/48+1/80+1/120+1/168）乘以56 （8/1+24/1+48/1+80/1+120//1+168/1）*42 1/8+1/24+1/48+1/80+1/120+1/168 （1/8+1/24+1/48+1/80+1/120+1/168）*56 42x(8/1+24/1+48/1+80/1+120/1+168/1)=?求求 42X（1/8+1/24+1/48+1/80+1/120+1/168）求解 8分之1+24分之1+48分之1+80分之1+120分之1=? 8/1+24/1+48/1+80/1+120/1要过程 1/8+1/24+1/48+1/80+.+1/360 = 1/8+1/24+1/48+1/80……+1/2400=?