题目内容
(1)计算:4×2-2+(
-1)0
(2)计算:(
)2+
.
7 |
(2)计算:(
3n |
p |
mn |
p2 |
(1)原式=4×
+1
=1+1
=2;
(2)原式=
+
=
.
1 |
4 |
=1+1
=2;
(2)原式=
9n2 |
ρ2 |
mn |
ρ2 |
=
9n2+mn |
ρ2 |

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题目内容
7 |
3n |
p |
mn |
p2 |
1 |
4 |
9n2 |
ρ2 |
mn |
ρ2 |
9n2+mn |
ρ2 |