Physics
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この式変形ってマイナス忘れてません？cosの後ろ-2πxだと思うんですが…
16
=2Asinn
2t
COST
T
2.x
2元t
2元エ
1/=2Asin
cOs
答
T
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調べてたらどうやらcosθ＝cos-θ使ったみたいですね…