Mathematics
Senior High
偏角の求め方がわかりません。
どなたか教えてください🙇♀️
20. 2=1-i のとき, 次の複素数の絶対値と偏角を求めよ。
(3-)2
V3+3
-1+V3i
リースco0(-号)+isin(-号)
ーュ=2(co(-号一号)+sin(-番一号)
20. z=1-i=/2
2{
2
4
4
(1) =z·ス=
4
+isin
4
4
π
+isin
2
2
よって,
l°|=2
arg=-+2nπ (n は整数)
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