问题
解答题
计算: ①
②
|
答案
①原式=
×3
+3 2
-2×(3
)23 2
=
+3 2
-3 3 2
=
.3
②原式=
+1 2 1+ 3 2 1 3 3
=
+1 2 2+ 3 2 3
=2-
+3 3
=2.
计算: ①
②
|
①原式=
×3
+3 2
-2×(3
)23 2
=
+3 2
-3 3 2
=
.3
②原式=
+1 2 1+ 3 2 1 3 3
=
+1 2 2+ 3 2 3
=2-
+3 3
=2.