问题
选择题
化简(log2
|
答案
(log2
+log27)+1 7
•24 23 1 4
=log2(
× 7)+2 1 7
•23 4 1 4
=log21 +2
+1 4
=23 4
故应选C．
搜题请搜索小程序“爱下问搜题”
化简(log2
|
(log2
+log27)+1 7
•24 23 1 4
=log2(
× 7)+2 1 7
•23 4 1 4
=log21 +2
+1 4
=23 4
故应选C．