问题
解答题
计算下列各题: (1)3-1+3
(2)
|
答案
(1)原式=
+31 3
+4+12 3
=4+4+1
=9;
(2)原式=
+5 5
-5 11 5 5
=(
+1-1 5
)11 5 5
=-
.5
计算下列各题: (1)3-1+3
(2)
|
(1)原式=
+31 3
+4+12 3
=4+4+1
=9;
(2)原式=
+5 5
-5 11 5 5
=(
+1-1 5
)11 5 5
=-
.5