您好:
x-4/(x²-1)除以x²-3x-4/(x²+2x+1)+1/(x-1)
=(x-4)/(x+1)(x-1)÷(x+1)(x-4)/(x+1)²+1/(x-1)
=1/(x-1)+1/(x-1)
=2/(x-1)
=2/(2√3+1-1)
=2/2√3
=1/√3
=√3/3
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请采纳本题后另发点击向我求助,答题不易,请谅解,谢谢。
祝学习进步!
(x-4)/(x-1)(x+1)乘以(x-1)²/()x+1(x-4))+1/(x-1)
=(x+1)/(x-1)+1/(x-1)
=()x+2(x-1)
=1+(根号3/2)