问题
解答题
(1)
(2)
|
答案
(1)原式=2
+33
-(4 3
+16 3
×42 3
)3
=2
+3×3
-2 3 3
-4 3 3 8 3 3
=2
-23
-3
-4 3 3 8 3 3
=-4
;3
(2)原式=
-1-22
+2-12
=2-
.2
(1)
(2)
|
(1)原式=2
+33
-(4 3
+16 3
×42 3
)3
=2
+3×3
-2 3 3
-4 3 3 8 3 3
=2
-23
-3
-4 3 3 8 3 3
=-4
;3
(2)原式=
-1-22
+2-12
=2-
.2