3 -2 的相反数是______,绝对值______,倒数是______. 9 64 =______ 3

2024-12-12 19:57:43
推荐回答(1个)
回答1:

3
-2的相反数是2-
3
,绝猜颤饥对值是2-
3
,倒数是
1
3
-2
=
3
+2
(
3
-2)(
3
+2)
=
3
+2;
9
64
=
3
8
,穗返
3
61
125
-1
=
3 -
64
125
=-
4
5

故答洞碰案为:2-
3
,2-
3
3
+2,
3
8
,-
4
5