题目内容
计算(1+2i)2 |
3+4i |
(2+i)2 |
4-3i |
分析:先化简两个分数复数的分子;分子、分母同乘分母的共轭复数,化简即可.
解答:解:
+
=
+
=
+
=
=
+
i
故答案为:
+
i
(1+2i)2 |
3+4i |
(2+i)2 |
4-3i |
-3+4i |
3+4i |
3+4i |
4-3i |
=
(-3+4i)(3-4i) |
(3+4i)(3-4i) |
(3+4i)(4+3i) |
(4-3i)(4+3i) |
7+49i |
25 |
=
7 |
25 |
49 |
25 |
故答案为:
7 |
25 |
49 |
25 |
点评:本题考查复数代数形式的混合运算,是基础题.
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