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A point movs in such a manner that the s...

A point movs in such a manner that the sum of the squares of its distances from the points `(a,0) and (-a, 0) ` is `2b^(2).` Then the locus of the moving point is-

A

`x^(2)-y^(2)=b^(2)+a^(2)`

B

`x^(2)-y^(2) =b^(2)-a^(2)`

C

`x ^(2) +y^(2) =b^(2)+a^(2)`

D

`x^(2) +y^(2)=b^(2)+a^(2)`

Text Solution

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The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 2
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  2. If the cube roots of unity are 1, omega, omega ^(2) then the roots of ...

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  3. A point movs in such a manner that the sum of the squares of its dista...

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  4. The length of the chord joining the points in which the straight line ...

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  5. If p is the length of the perpendicular from the origin on the line wh...

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  6. In three dimensional spaces, the perpendicular distance of the point p...

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  7. If the circel x ^(2) +y^(2) +6x -2y +k=0 bisects the circumference of ...

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  8. The lines 4x+4y =1,8x -3y =2 and y=0 are-

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  9. If the distrance of a point on the ellipse 4x^(2) +9y^(2) =36 from its...

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  10. Locus of centroid of the triangle whose vertices are (a cos t , a sin ...

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  11. The image of the point (4, -3) with respect to the line x-y=0 is,

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  12. A straight line through the origin O meets the parallel lines 4x +2y=9...

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  13. If a+b+c=0, then the straight lines 4ax + 3by+c=0 always pass through ...

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  14. In three dimensional space the equation of xy-plane is-

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  15. If (x(i), (1)/(x(i)))(i =1,2,3,4) are the four distinct points on a ci...

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  16. Equation of the circle which passes through the points of intersection...

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  17. If the chord u=mx +1 of the circel x ^(2) +y^(2)=1 subtends an angle o...

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  18. In a class of 30 pupils, 12 take mathematics, 16 take physics and 18 l...

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  19. If a ne 0 and the line 2 bx +3 cy +4d=0 passes through the points of i...

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  20. Solve : (5^x)/(5^y)=25, (4^y)/(2^x)=2

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