题目内容
(8分)先化简:,再任选一个你喜欢的数代入求值.
解:
······················ (2分)
··························· (4分)
………………………………………………………………………6分
取和2以外的任何数,计算正确都可给分.………………………………8分解析:
略
······················ (2分)
··························· (4分)
………………………………………………………………………6分
取和2以外的任何数,计算正确都可给分.………………………………8分解析:
略
练习册系列答案
相关题目