Last Updated：2025/11/29
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Every time I teach calculus, I remind students that the Pythagorean trigonometric identity underlies many simplifications.
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Every time I teach calculus, I remind students that the Pythagorean trigonometric identity underlies many simplifications.
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Pythagorean trigonometric identity
Noun
Japanese Meaning
単位円上におけるピタゴラスの定理の応用として、任意の実数および複素数 x に対して sin²(x) + cos²(x) = 1 が成立する三角恒等式
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