问题
解答题
|
答案
(1)
+1 2
-1 2 1 2
=
+(1 2
-1 2
)1 2
=
+01 2
=
;1 2
(2)
×1 2
+1 2
÷1 2 1 2
=
+11 4
=1
;1 4
(3)(
-1 2
)×881 2
=0×88
=0;
(4)13-48×(
+1 2
)1 2
=13-48×1
=13-48
=-35;
(5)
÷3+1 2
×1 2 1 2
=
+1 6 1 4
=
;5 12
(6)
+1 2
×1 2
+1 2 1 2
=
+1 2
+1 4 1 2
=
+1 2
+1 2 1 4
=1+1 4
=1
;1 4
(7)
×1 2
+1 2
×1 2
+1 2 1 2
=
×(1 2
+1 2
+1)1 2
=
×21 2
=1.