问题
解答题
计算:(sin45°tan30°-cos30°)tan60°.
答案
(sin45°tan30°-cos30°)tan60°
=(
×2 2
-3 3
)×3 2 3
=
-2 2 3 2
=
.
-32 2
计算:(sin45°tan30°-cos30°)tan60°.
(sin45°tan30°-cos30°)tan60°
=(
×2 2
-3 3
)×3 2 3
=
-2 2 3 2
=
.
-32 2