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極坐標

polar-coordinate

極坐標與直角坐標系統的轉換

(x,y)=(rcosθ,rsinθ)r2=x2+y2 \begin{matrix} (x, y) = (r\cos\theta, r\sin\theta) \\ \\ \text{其中} \; r^2=x^2+y^2 \end{matrix}

文憑試練習卷 Paper1 Q6

dse-pp-paper1-06

延伸閱讀

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