Last Updated：2025/12/03
To solve the differential equation, the professor demonstrated how the Pythagorean trigonometric identities simplify expressions involving sine and cosine.
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To solve the differential equation, the professor demonstrated how the Pythagorean trigonometric identities simplify expressions involving sine and cosine.
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微分方程式を解くために、教授は正弦と余弦を含む式を簡単にする三角関数のピタゴラス恒等式をどのように使うかを示した。
