(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)时间只有1个小时了,求求啊.
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![(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)时间只有1个小时了,求求啊.](/uploads/image/z/4870-46-0.jpg?t=%281%2B0.34%2B0.45%2B0.56%29%2A%280.34%2B0.45%2B0.56%2B0.67%29-%281%2B0.34%2B0.56%2B0.45%2B0.67%29%2A%280.34%2B0.45%2B0.56%29%E6%97%B6%E9%97%B4%E5%8F%AA%E6%9C%891%E4%B8%AA%E5%B0%8F%E6%97%B6%E4%BA%86%2C%E6%B1%82%E6%B1%82%E5%95%8A.)
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(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)时间只有1个小时了,求求啊.
(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)
时间只有1个小时了,求求啊.
(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)时间只有1个小时了,求求啊.
令a=0.34+0.45+0.56
原式=(1+a)(a+0.67)-(1+a+0.67)a
=(1+a)a+0.67(1+a)-(1+a)a-0.67a
=0.67(1+a)-0.67a
=0.67+0.67a-0.67a
=0.67
(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0.67)*(0.34+0.45+0.56)时间只有1个小时了,求求啊.
计算:(1+0.23+0.34)*(0.2903+0.34+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89=?
(1+0.23+0.34)*(0.23+0.34+0.45)-(1+0.23+0.34+0.45)*(0.23+0.34)简便运算
(1+0.23+0.34)×(0.23+0.34+0.45)-(1+0.23+0.34+0.45)×(0.23+0.34)
用特殊方法算(1+0.45+0.56)*(0.45+0.56+0.67)-(1+0.45+0.56+0.67*(0.45+0.56)=?
﹙1+0.23+0.34﹚×﹙0.23+0.34+0.56)-﹙1+0.23+0.34+0.56﹚×﹙0.23+0.34)
(1+0.12+0.34)*(0.12+0.34+0.56)-(1+0.12+0.34+0.56)*(0.12+0.34)用简便算法怎么算急!
(1+0.12+0.34)x(0.12+0.34+0.56)-(1+0.12+0.34+0.56)x(0.12+0.34)要简便计算
(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34) 简便算法
(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34) 简便算法
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位
0.12+0.23+0.34+0.45+0.56答案是几 注:都是循环小数,第二位开始
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位 《2》
求(1+0.12+0.34)乘(0.12=0.34=0.56)-(1=0.12=0.34=0.56)乘(0.12+0.34)的
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,循环最后一位,看得懂的来.........0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,看得懂的来,最后一位循环.
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,最后一位循环.看得懂的来.
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,最后一位循环.看得懂的来.