(22)-1-12-1+2sin45°-cos60°+(12)0.-数学

题目简介

(22)-1-12-1+2sin45°-cos60°+(12)0.-数学

题目详情

(
2
2
)-1-
1
2
-1
+2sin45°-cos60°+(
1
2
)0
题型:解答题难度:中档来源:不详

答案

原式=
2
-(
2
+1)+2×
2
2
-class="stub"1
2
+1
=
2
-
2
-1+
2
-class="stub"1
2
+1
=
2
-class="stub"1
2

更多内容推荐