Mathematics
Senior High
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数IIです。分からないので教えてください🙇‍♀️

B 291 次の等式を証明せよ。
(2) cos(0-2π) - cos(-0) + sin (2-0) + sin sin(-)+sin(+0)- = = 0 2

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✨ Best Answer ✨

こんな感じです。

加法定理
みみ

なるほど!ありがとうございます🙇🏻‍♀️

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