问题
填空题
化简(1+
|
答案
(1+
)÷1 x-1
=x x2-1
×x x-1
=x+1,(x-1)(x+1) x
由原式,知x≠0,±1,
故若取x=2时,则原式的值为3.
故答案为:x+1,2,3.
化简(1+
|
(1+
)÷1 x-1
=x x2-1
×x x-1
=x+1,(x-1)(x+1) x
由原式,知x≠0,±1,
故若取x=2时,则原式的值为3.
故答案为:x+1,2,3.