问题
解答题
计算: (1)(
(2)(
|
答案
(1)(
)-2-(1 3
-1)0+3 5
+12
=9-1+5(
-1)2 (
+1)(2
-1)2
=8+5
-52
=3+52
(2)(
+1 a
)÷1 b
.a+b b
=
×a+b ab b a+b
=
.1 a
计算: (1)(
(2)(
|
(1)(
)-2-(1 3
-1)0+3 5
+12
=9-1+5(
-1)2 (
+1)(2
-1)2
=8+5
-52
=3+52
(2)(
+1 a
)÷1 b
.a+b b
=
×a+b ab b a+b
=
.1 a