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For hyperbola (x^(2))/(cos^(2)alpha)-(y^...

For hyperbola `(x^(2))/(cos^(2)alpha)-(y^(2))/(sin^(2)beta)=1` which of the following remains constant with change in `alpha`

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RESONANCE DPP ENGLISH-CONIC SECTIONS-All Questions
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  5. For hyperbola (x^(2))/(cos^(2)alpha)-(y^(2))/(sin^(2)beta)=1 which of ...

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  6. Number of normals drawn from the point (-2,2) to the parabola y^2-2y-2...

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  7. If the line 2x-2y+lambda=0 is a secant to the parabola x^2=-8y , the...

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  8. A set of parallel chords of the parabola y^2=4a x have their midpoint ...

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  9. A rhombus is formed by two radii and two chords of a circle whose r...

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  11. The chord of contact of the pair of tangents drawn from each point on ...

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  12. The focal chord to y^2=16 x is tangent to (x-6)^2+y^2=2. Then the poss...

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  14. Through the vertex ' O^(prime) of the parabola y^2=4a x , variable c...

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  15. The locus of the midpoint of the line segment joining the focus to a ...

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  16. The equation to the chord joining two points (x1,y1)a n d(x2,y2) on th...

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  17. The locus of the point of intersection of the tangents at the extre...

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  18. Let us consider an ellipse whose major and minor axis are 3x+4y-7=0 an...

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  19. If two distinct chords, drawn from the point (p, q) on the circle x^2+...

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