问题
解答题
计算: (1)-
(2)-1
(3)6
(4)-505
|
答案
(1)原式=-
-2 15
=-12 15
;14 15
(2)原式=-1
-3 12
=-210 12
;1 12
(3)原式=6
-33 36
=210 36
;29 36
(4)原式=0.
计算: (1)-
(2)-1
(3)6
(4)-505
|
(1)原式=-
-2 15
=-12 15
;14 15
(2)原式=-1
-3 12
=-210 12
;1 12
(3)原式=6
-33 36
=210 36
;29 36
(4)原式=0.