问题
解答题
计算:6tan230°-
|
答案
(1)6tan230°-
sin60°-2sin45°3
=6×(
)2-3 3
×3
-2×3 2 2 2
=
-1 2
.2
故答案为
-1 2
.2
计算:6tan230°-
|
(1)6tan230°-
sin60°-2sin45°3
=6×(
)2-3 3
×3
-2×3 2 2 2
=
-1 2
.2
故答案为
-1 2
.2