Mathematics
Senior High
この問題で青い棒線部の様に答えなかればいけないのは何故ですか?
1節 複素数平面
回-2/日(c+isn
2(cos
7
-π+isin
例 5
π
2,2(cos
π
+isin
4
ニ
-Tπ
22
4
のとき,2」22 と
21 を求めてみよう。
22
zfom(
Tπ
7
π
2」2g = 2/2.V2{cos
+isin
-π十
4
12
4
5
5
-π+isin
6
π=-2/3 +2i
6
4coS-
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