化简:(1/a-1)÷a²-1/a²+a
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 05:30:57
![化简:(1/a-1)÷a²-1/a²+a](/uploads/image/z/201887-71-7.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%EF%BC%881%2Fa-1%EF%BC%89%C3%B7a%26%23178%3B-1%2Fa%26%23178%3B%2Ba)
xTMo@+VPQBdw^`"JЬ7
1uJ*B?8r)H9XIE W.̛o֍[ٻ<=o0ӷ1ܾ-*3 .G[Qre/dV:4q.bQ*p%ZynԱ
f2t^ʬEW'$^-z?qMI}]Z`8H4x]"p>`Cۺ&9 N&u0̀spbfQM;a0Bu;(RzEӴe.g//>̵:=LB 0f0a3,,=kK-:g{/w
OY."Sۥ4q>
w6}^ҭ*͍lbf_NFW.קyz^^jv|]D!P$pڅ{x,֤B
化简:(1/a-1)÷a²-1/a²+a
化简:(1/a-1)÷a²-1/a²+a
化简:(1/a-1)÷a²-1/a²+a
1/a-1 ÷ a²-1/a²+a
=1/a-1 ÷ (a+1)(a-1)/a(a+1)
=1/a-1 ÷ a-1/a
=a/(a-1)²
(1-a)/a÷(a+1)(a-1)/a(a+1)
=(1-a)/a÷(a-1)/a
=-1
收起
原式=(1-a)/a*1/a^2-1/a^2+a
=(1-2a)/a^3
=(a^4-2a+1)/a^3
=[(1/a-1)-1]/a²+a
=[(1-2a)/a]/a²]+a
=(1-2a)/a³+a
你确定题目没写错?
(1/a-1)÷a²-1/a²+a
=(1/a-1)×a²+a /a²-1
=(a-1)/a ×a(a+1) /[(a-1)(a+1)]
=1