问题
解答题
计算: (1)(-0.5)+(-1
(2)|-4
|
答案
(1)原式=-
+(-11 2
)5 6
=-(
+11 2
)5 6
=-2
;1 3
(2)原式=|-4
+1 4
|-(43 4
-1 4
)3 4
=4
-1 4
-43 4
+1 4 3 4
=(4
-41 4
)+(-1 4
+3 4
)3 4
=0.
计算: (1)(-0.5)+(-1
(2)|-4
|
(1)原式=-
+(-11 2
)5 6
=-(
+11 2
)5 6
=-2
;1 3
(2)原式=|-4
+1 4
|-(43 4
-1 4
)3 4
=4
-1 4
-43 4
+1 4 3 4
=(4
-41 4
)+(-1 4
+3 4
)3 4
=0.