问题
解答题
(1)计算(-
(2)计算
|
答案
(1)原式=-
×12+1 2
×12-2 3
×121 4
=-6+8-3
=-1;
(2)原式=4
-(4+42
+2)2
=4
-6-42 2
=-6.
(1)计算(-
(2)计算
|
(1)原式=-
×12+1 2
×12-2 3
×121 4
=-6+8-3
=-1;
(2)原式=4
-(4+42
+2)2
=4
-6-42 2
=-6.