问题
解答题
计算: (1)
(2)3tan30°-2cos30°+tan60°. |
答案
(1)原式=
(42 2
+3
-122
)3
=
(2 2
-82
)3
=1-4
.6
(2)原式=3×
-2×3 3
+3 2 3
=
-3
+3 3
=
.3
计算: (1)
(2)3tan30°-2cos30°+tan60°. |
(1)原式=
(42 2
+3
-122
)3
=
(2 2
-82
)3
=1-4
.6
(2)原式=3×
-2×3 3
+3 2 3
=
-3
+3 3
=
.3