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> 计算:(1)(13)-2-(3-1)0+52+1(2)(1a+1b)÷a+bb.-数学
计算:(1)(13)-2-(3-1)0+52+1(2)(1a+1b)÷a+bb.-数学
题目简介
计算:(1)(13)-2-(3-1)0+52+1(2)(1a+1b)÷a+bb.-数学
题目详情
计算:
(1)
(
1
3
)
-2
-(
3
-1
)
0
+
5
2
+1
(2)
(
1
a
+
1
b
)÷
a+b
b
.
题型:解答题
难度:中档
来源:昆明
答案
(1)
(
class="stub"1
3
)
-2
-(
3
-1
)
0
+
class="stub"5
2
+1
=9-1+
5(
2
-1)
(
2
+1)(
2
-1)
=8+5
2
-5
=3+5
2
(2)
(
class="stub"1
a
+
class="stub"1
b
)÷
class="stub"a+b
b
.
=
class="stub"a+b
ab
×
class="stub"b
a+b
=
class="stub"1
a
.
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题目简介
计算:(1)(13)-2-(3-1)0+52+1(2)(1a+1b)÷a+bb.-数学
题目详情
(1)(
(2)(
答案
=9-1+
=8+5
=3+5
(2)(
=
=