Given the parametric equations
X = √ 1 + t^2 and y = √ 1 - t^2 (即 X = 開方 1 + t^2 and y = 開方1 - t^2)
prove that (d^2 y / d x^2) = - (2 / y^3)
收錄日期: 2021-04-12 20:31:41
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