Kreisevolvente y = −sin2θ+4n-1r2 = cosθ (0°≦θ<180°) y = −sin2θ+(3/2)n-1r2 = cosθ (180°≦θ≦360°) T.theodor 2022.10.28.
h→0 s→0 T.theodor 2022.10.28.
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