已知X²-X-1=0,则代数式X/1-<X-1>/1的值为
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/12 10:28:08
![已知X²-X-1=0,则代数式X/1-<X-1>/1的值为](/uploads/image/z/14993989-61-9.jpg?t=%E5%B7%B2%E7%9F%A5X%26%23178%3B-X-1%3D0%2C%E5%88%99%E4%BB%A3%E6%95%B0%E5%BC%8FX%2F1-%26lt%3BX-1%26gt%3B%2F1%E7%9A%84%E5%80%BC%E4%B8%BA)
x){}K#Ԕ
-u#t
m
tv|{7U)ʨX>aϓl)Ѯ_`gC
`~>L4ЭՇ5LC~qAbM oj
已知X²-X-1=0,则代数式X/1-<X-1>/1的值为
已知X²-X-1=0,则代数式X/1-<X-1>/1的值为
已知X²-X-1=0,则代数式X/1-<X-1>/1的值为
x(x-1) = 1
1/x - 1/(x-1) = [(x-1) -x]/x(x-1) = -1/x(x-1) =-1/1 = -1