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> 计算:(-22)•2-3(2-1)0+cos60°-1cot45°=______.-数学
计算:(-22)•2-3(2-1)0+cos60°-1cot45°=______.-数学
题目简介
计算:(-22)•2-3(2-1)0+cos60°-1cot45°=______.-数学
题目详情
计算:(-2
2
)•2
-3
(
2
-1
)
0
+cos60°-
1
cot45°
=______.
题型:填空题
难度:中档
来源:重庆
答案
原式=-4×
class="stub"1
8
×1+
class="stub"1
2
-1=-1.
故答案为:-1
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题目简介
计算:(-22)•2-3(2-1)0+cos60°-1cot45°=______.-数学
题目详情
答案
故答案为:-1