您好:
原式=a(a-1)/(a-1)²+(a-1)²/(a-1)
=a/(a-1)+a-1
=(a+a²-a)/(a-1)
=a²/(a-1)
=(√2-1)²/(√2-1-1)
=(2-2√2+1)/(√2-2)
=(3-2√2)(√2+2)/(2-4)
=(3√2-4+6-4√2)/(-2)
=1/2√2-1
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请另发或点击向我求助,答题不易,请谅解,谢谢.
祝学习进步!
您好:
原式=a(a-1)/(a-1)²+(a-1)²/(a-1)
=a/(a-1)+a-1
=(a+a²-a)/(a-1)
=a²/(a-1)
=(√2-1)²/(√2-1-1)
=(2-2√2+1)/(√2-2)
=(3-2√2)(√2+2)/(2-4)
=(3√2-4+6-4√2)/(-2)
=1/2√2-1
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请另发或点击向我求助,答题不易,请谅解,谢谢.
祝学习进步!