Mathematics
Senior High
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この、254の証明の、付箋のところの式変形が分数の計算が苦手で分かりません。どうしてこうなるのですか?

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✨ Best Answer ✨

cosθ分のcosθをかけるだけです!

よもぎ

なるほど!
何度もありがとうございます🙇‍♂️🙇‍♂️

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