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The equation (x^2)/(1-r)-(y^2)/(1+r)=1,r...

The equation `(x^2)/(1-r)-(y^2)/(1+r)=1,r >1,` represents (a)an ellipse (b) a hyperbola (c)a circle (d) none of these

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
  1. If the foci of (x^2)/(a^2)-(y^2)/(b^2)=1 coincide with the foci of (x^...

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  2. The locus of a point whose chord of contact with respect to the circle...

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  3. The equation (x^2)/(1-r)-(y^2)/(1+r)=1,r >1, represents (a)an ell...

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  4. An ellipse has eccentricity 1/2 and one focus at the point P(1/2,1)....

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  5. A tangent drawn to hyperbola x^2/a^2-y^2/b^2 = 1 at P(pi/6) froms a t...

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  6. lf the eccentricity of the hyperbola x^2-y^2(sec)^2alpha=5 is sqrt3 ...

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  7. If L is the length of the latus rectum of the hyperbola for which x=3a...

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  8. If the chord xcosalpha+ysinalpha=p of the hyperbola (x^2)/(16)-(y^2)/(...

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  9. If the vertex of a hyperbola bisects the distance between its center ...

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  10. If the distance between two parallel tangents having slope m drawn to ...

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  11. The area of triangle formed by the tangents from the point (3, 2) to t...

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  12. If a variable line has its intercepts on the coordinate axes e and e^(...

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  13. If tangents drawn from the point (a ,2) to the hyperbola (x^2)/(16)-(y...

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  14. If the hyperbola x^2-y^2=4 is rotated by 45^0 in the anticlockwise dir...

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  15. Find the point on the hyperbola x^2/24 - y^2/18 = 1 which is nearest t...

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  16. The number of possible tangents which can be drawn to the curve 4x^2-9...

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  17. If values of a, for which the line y=ax+2sqrt(5) touches the hyperbola...

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  18. If the angle between the asymptotes of hyperbola (x^2)/(a^2)-(y^2)/(b^...

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  19. The sides A Ca n dA B of a A B C touch the conjugate hyperbola of the...

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  20. The tangent at a point P on the hyperbola (x^2)/(a^2)-(y^2)/(b^2)=1 pa...

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