问题
解答题
-
|
答案
原式=-1 b
÷ab2
•(-b a 1 a
)a2b3
=-
•b1 b
•a
•(-ab b
•ab1 a
)b
=-
•a
•(-bab b
)b
=ab．
搜题请搜索小程序“爱下问搜题”
-
|
原式=-1 b
÷ab2
•(-b a 1 a
)a2b3
=-
•b1 b
•a
•(-ab b
•ab1 a
)b
=-
•a
•(-bab b
)b
=ab．