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The centre of the circle (1+m^(2)) (x^(2...

The centre of the circle `(1+m^(2)) (x^(2)+y^(2))-2cx-2cmy =0" is "`

A

`(c/(1+m^2),(cm)/(1+m^2))`

B

`(-c/(1+m^2),(cm)/(1+m^2))`

C

`(c/(1+m^2),-(cm)/(1+m^2))`

D

`(-c/(1+m^2),-(cm)/(1+m^2))`

Text Solution

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1A(Circle)
  1. The equatinn of the circle with centre origin and radius 2 is

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  2. The centre of the circle x^(2)+y^(2)-4x-2y-4=0 is

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  3. The centre of the circle (1+m^(2)) (x^(2)+y^(2))-2cx-2cmy =0" is "

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  4. The radius of the circle x^(2)+y^(2)+6x+8y-96=0" is "

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  5. The radius of the circle (1+m^(2))(x^(2)+y^(2))-2cx-2cmy=0" is "

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  6. The length of the diameter of the circle x^(2)+y^(2)-6x-8y=0" is "

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  7. The equation of the circle passing through (-7, 1) and having centre a...

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  8. The diameters of a circle pre along 2x+y-7=0 and x+3y- 11=0. Then, the...

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  9. If the lines 2x -3y=5 and 3x-4y=7 are two diameters of a circle of rad...

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  10. The length of the diameter of the circle which touches the x-axis at t...

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  11. If 2x^(2)+by^(2)+4x-6y-1=0 represents a circle, then b=

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  12. If x^(2)+y^(2)-4x+6y+c=0 represents a circle of radius 5 then c=

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  13. If x^(2)+y^(2)+2gx+2fy+9=0 represents a circle with centre (1,-3) then...

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  14. The point (-1,0) lies on the circle x^2+y^2-4x+ 8y + k=0. The radius o...

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  15. The centroid of an equilateral triangle is (0, 0) and the length of th...

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  16. Origin is the centre of a circle passing through the vertices of an eq...

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  17. The circumcircle of a triangle is given by x^(2)+y^(2)-4x+6y-3=0. The ...

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  18. The centres of the three circles x^(2)+y^(2)-10x+9=0, x^(2)+y^(2)-6x+2...

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  19. For the circle x^(2)+y^(2)-4x-2y-36=0, the point (3, 5)

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  20. For the circle 2x^(2)+2y^(2)-5x-4y-3=0 the point (3, 5)

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