化简一道式子1- 1/x+1 x- 2/X²-1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 12:46:03
![化简一道式子1- 1/x+1 x- 2/X²-1](/uploads/image/z/7107133-13-3.jpg?t=%E5%8C%96%E7%AE%80%E4%B8%80%E9%81%93%E5%BC%8F%E5%AD%901-+1%2Fx%2B1+x-+2%2FX%26sup2%3B-1)
x){3';^6N~
چ
FjťFֺ6IEXTqi/!
{:
u#qtl5eCs"X- " v)<&c 6;P?"Н.pZZEas~qAb(y
化简一道式子1- 1/x+1 x- 2/X²-1
化简一道式子
1- 1/x+1 x- 2/X²-1
化简一道式子1- 1/x+1 x- 2/X²-1
1)1-X/(X+1)-2/(X²-1)
=(X²-1)/(X²-1)-X(X-1)/(X²-1)-2/(X²-1)
=(X-3)/(X²-1)
2)1-1/X(X+1)-2/(X²-1)
=X(X²-1)/X(X²-1)-(X-1)/X(X²-1)-2/(X²-1)
=(X³-2X-2)/(X²-1)