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If the normals to the ellipse x^2/a^2+y...

If the normals to the ellipse `x^2/a^2+y^2/b^2= 1` at the points `(x_1, y_1), (x_2, y_2) and (x_3, y_3)` are concurrent, prove that `|(x_1,y_1,x_1y_1),(x_2,y_2,x_2y_2),(x_3,y_3,x_3y_3)|=0`.

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CENGAGE PUBLICATION-CONIC SECTIONS-All Questions
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  3. If the normals to the ellipse x^2/a^2+y^2/b^2= 1 at the points (x1, y...

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  4. Find the normal to the ellipse (x^2)/(18)+(y^2)/8=1 at point (3, 2).

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  7. Find the slope of a common tangent to the ellipse (x^2)/(a^2)+(y^2)/(b...

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  9. If F1 and F2 are the feet of the perpendiculars from the foci S1a ...

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  10. If the tangent at any point of the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 m...

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  14. Chords of the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 are drawn through the...

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