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> 计算:(-12)-1-(2-1)0•sin45°+18.-数学
计算:(-12)-1-(2-1)0•sin45°+18.-数学
题目简介
计算:(-12)-1-(2-1)0•sin45°+18.-数学
题目详情
计算:
(-
1
2
)
-1
-(
2
-1
)
0
•sin45°+
18
.
题型:解答题
难度:中档
来源:不详
答案
原式=-2-1×
2
2
+3
2
=-2-
2
2
+3
2
=
5
2
2
-2.
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计算:(-12)-1-(2-1)0•sin45°+18.-数学
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