Question: For the equation Ax 2 + Bxy + Cy 2 + Dx + Ey + F = 0, the value of that satisfies cot(2)

For the equation Ax2 + Bxy + Cy2 + Dx + Ey + F = 0, the value of θ that satisfies cot(2θ) = A−C/B gives us what information?

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