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Find the centre and radius of the follow...

Find the centre and radius of the following circles.
`x^2+y^2-4x-8y-45=0`

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MAXIMUM PUBLICATION-CONIC SECTIONS-EXAMPLE
  1. Find the equation of the circle in following cases. centre (-2,3) an...

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  2. Find the equation of the circle in following cases. centre (1/2,1/4)...

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  3. Find the centre and radius of the following circles. x^2+y^2-4x-8y-4...

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  4. Find the centre and radius of the following circles. x^2+y^2-8x-10y-...

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  5. Find the centre and radius of the following circles. 2x^2+2y^2-x=0

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  6. Find the coordinate of the focus,axis of the parabola, the equation of...

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  7. Find the coordinate of the focus,axis of the parabola, the equation of...

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  8. Find the coordinate of the focus,axis of the parabola, the equation of...

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  9. Find the equation of the parabola satisfying the following condition, ...

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  10. Find the equation of the parabola satisfying the following condition, ...

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  11. Find the equation of the parabola satisfying the following condition, ...

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  12. Find the Focus, vertex and latus rectum of the parabola y^2=8x.

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  13. Find the coordinate of the foci, the verticles,the length of major axi...

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  14. Find the coordinate of the foci, the verticles,the length of major axi...

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  15. Find the ellipse satisfying the following conditions: vertex (+-5,0)...

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  16. Find the ellipse satisfying the following conditions: Ends of the ma...

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  17. Find the ellipse satisfying the following conditions: Length of the ...

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  18. Find the ellipse satisfying the following conditions: b=3,c=4, centr...

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  19. Find the coordinates of foci, the vertices, eccentricity and length of...

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  20. Find the coordinates of foci, the vertices, eccentricity and length of...

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