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Find the coordinates of the centre and r...

Find the coordinates of the centre and radius of each of the following circle: `x^2+y^2-a x-b y=0`

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Standard equation of circle
`x^2 +y^2+2gx+2fy+c=0`
Centre `(-g,-f)` radius=`sqrt(g^2+f^2-c)`
Centre `(a/2,b/2)`
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RD SHARMA-THE CIRCLE-Solved Examples And Exercises
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  8. Find the equation of the circle which passes through the points (3, -2...

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  9. Find the equation of the circle which passes through the points (3,7),...

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  10. Show that the poin-2) and (1,-4) are con-cyclic.

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  11. Show that the points A(5,5), B(6,4 and D(7,1) all lies on the circle....

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  13. Find the equation of the circle which circumscribes the triangle forme...

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  14. Prove that the centres of the three circles = 0,x^2+y^2 + 2x + 4y -5 =...

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  15. Find the equation of the circle which circumscribes the triangle forme...

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  16. Find the equation of the circle which circumscribes the triangle forme...

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  17. Find the equation of the circle which passes through the origin and ...

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  18. Find the equation of the circle concentric with the circle x^2 + y^2 -...

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  19. If a circle passes through the point (0,0),(a ,0)a n d(0, b) , then fi...

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  20. Find the equations of the circles drawn on the diagonals of the rec...

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