Mathematics
Senior High
矢印の部分の計算が分からないです。
教えてください🙇♀️
cosnπ (nは正の整数)=(-1)^nなんですか？
= [₁ x ( - cos nx) dx
T
nx
- [_cosmx]" + ["), cos nx dx
n
n
|||
6
0
π COSNT
conx + 1[*cos nx dx
n
−1)| + | sinnx|
H
n
=(−1)”-¹″.
n
cosna = (-1)", ??
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