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> 计算:(2-1)0-(12)-1+2cos60°.-数学
计算:(2-1)0-(12)-1+2cos60°.-数学
题目简介
计算:(2-1)0-(12)-1+2cos60°.-数学
题目详情
计算:
(
2
-1
)
0
-(
1
2
)
-1
+2cos60°
.
题型:解答题
难度:中档
来源:宿迁
答案
原式=1-
class="stub"1
class="stub"1
2
+2×
class="stub"1
2
=1-2+1
=0.
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题目简介
计算:(2-1)0-(12)-1+2cos60°.-数学
题目详情
答案
=1-2+1
=0.