问题
解答题
计算:20120-3tan30°+(
|
答案
20120-3tan30°+(
)-2-|1 3
-2|3
=1-3×
+9-2-3 3 3
=1-
+9-2-3 3
=8-2
.3
故答案为:8-2
.3
计算:20120-3tan30°+(
|
20120-3tan30°+(
)-2-|1 3
-2|3
=1-3×
+9-2-3 3 3
=1-
+9-2-3 3
=8-2
.3
故答案为:8-2
.3