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The locus of a point which moves so that...

The locus of a point which moves so that the difference of the squares of its distance from two given points is constant, is a

A

straight line

B

plane

C

sphere

D

none of these

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The correct Answer is:
B
NA
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If the locus of the point which moves so that the difference (p) 0 of its distance from the points (5, 0) and (-5,0) is 2 is x^2/a^2-y^2/24=1 then a is

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OBJECTIVE RD SHARMA ENGLISH-PLANE AND STRAIGHT LINE IN SPACE -Exercise
  1. The perpendicular distance from the origin to the plane through the po...

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  2. The equation of the plane perpendicular to the line (x-1)/1=(y-2)/(-1)...

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  3. The locus of a point which moves so that the difference of the squares...

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  4. If the position vectors of the points A and B are 3hati+hatj+2hatk and...

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  5. The vector equation of the plane passing through the origin and the li...

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  6. The position vectors of points A and B are hati - hatj + 3hatk and 3...

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  7. The vector equation of the plane through the point 2hat(i)-hat(j)-4hat...

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  8. The vector equation of the plane through the point (2, 1, -1) and pass...

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  9. Equation of a plane passing through the intersection of the planes vec...

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  10. The vector equation of a plane which contains the line vecr=2hati+lamd...

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  11. The equation of the plane containing the lines vecr = vec a (1) + lam...

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  12. The equation of the plane containing the lines vecr = vec a (1) + lam...

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  13. Find the equation of plane passing through the line of intersection of...

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  14. Find the vector equation of the plane in which the lines vecr=hati+ha...

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  15. The Cartesian equation of the plane vecr=(1+lamda-mu)hati+(2-lamda)hat...

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  16. The perpendicular distance between the line vecr = 2hati-2hatj+3hatk+l...

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  17. The vector equation of the line of intersection of the planes vecr.(2h...

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  18. A straight line vecr=veca+lambda vecb meets the plane vecr. vec n=0 at...

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  19. The equation of the plane passing through three non - collinear points...

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  20. The length of the perpendicular from the origin to the plane passing t...

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