1/2029091等于,多少分之一减多少分之一?
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:数学作业 时间:2024/07/01 02:35:49
1/2029091等于,多少分之一减多少分之一?
![1/2029091等于,多少分之一减多少分之一?](/uploads/image/z/18607372-52-2.jpg?t=1%2F2029091%E7%AD%89%E4%BA%8E%2C%E5%A4%9A%E5%B0%91%E5%88%86%E4%B9%8B%E4%B8%80%E5%87%8F%E5%A4%9A%E5%B0%91%E5%88%86%E4%B9%8B%E4%B8%80%3F)
1/a-1/b=1/2029091
二元一次方程有无数组解.求整数解方法如下:
2029091b-2029091a=ab
ab+2029091a-2029091b=0
ab+2029091a-2029091b-4117210286281=-4117210286281
(ab+2029091a)-(2029091b+4117210286281)=-4117210286281
a(b+2029091)-2029091(b+2029091)=-4117210286281
(a-2029091)(b+2029091)=-4117210286281=-1*4117210286281=-2029091*2029091
(1)a-2029091=-1 a=2029090
b+2029091=4117208257190 b=4117210083372
(2)a-2029091=-2029091 a=0 不合题意,舍去.
二元一次方程有无数组解.求整数解方法如下:
2029091b-2029091a=ab
ab+2029091a-2029091b=0
ab+2029091a-2029091b-4117210286281=-4117210286281
(ab+2029091a)-(2029091b+4117210286281)=-4117210286281
a(b+2029091)-2029091(b+2029091)=-4117210286281
(a-2029091)(b+2029091)=-4117210286281=-1*4117210286281=-2029091*2029091
(1)a-2029091=-1 a=2029090
b+2029091=4117208257190 b=4117210083372
(2)a-2029091=-2029091 a=0 不合题意,舍去.