> 数学 >
(a-1)/[a^(2/3)+a^(1/3)+1]化简等于?
人气:287 ℃ 时间:2020-01-31 03:34:18
解答
分子立方差
原式=[a^(1/3)-1][a^(2/3)+a^(1/3)+1]/[a^(2/3)+a^(1/3)+1]
=a^(1/3)-1
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版