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Ellipse: Oriented Rotation 1

作者：Ryan Hirst
Proposition: Given an ellipse rotated by ∡θ, determine the relationships among the values a, b, θ, and the equations i) Ax² −2Bxy + Cy² = F ii) x²/a² + y²/b² =1 iii) parametric equation r(t) = a u + b v

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