Refer to Figure 25 in Section 11.5. Prove that the product of the perpendicular distances F 1
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Refer to Figure 25 in Section 11.5. Prove that the product of the perpendicular distances F1R1 and F2R2 from the foci to a tangent line of an ellipse is equal to the square b2 of the semiminor axes.
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C R₁ = (₁.₁) F₁ =(-c. 0) P = (xo-yo) 8₂ R₂ = (0₂.B₂) F₂=(c.0) -X
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