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A circle S cuts three circles x^(2) + ...

A circle S cuts three circles ` x^(2) + y^(2) - 4x - 2y + 4 = 0 , x^(2) + y^(2) - 2x - 4y + 1 = 0 " and " x^(2) + y^(2) + 4x + 2y + 1 = 0 ` orthogonally . Then the radius of S is

A

`sqrt((29)/(8) )`

B

`sqrt((28)/(11) )`

C

`sqrt((29)/(7) )`

D

`sqrt((29)/(5) )`

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-SYSTEM OF CIRLES -EXERCISE 1
  1. Find the equation of the circle which is orthogonal to each of the fol...

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  2. The equation of the circle which cuts orthogonally the three circles ...

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  3. A circle S cuts three circles x^(2) + y^(2) - 4x - 2y + 4 = 0 , x^(2...

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  4. The equation of the circle which cuts orthogonally the three circles ...

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  5. The circles orthogonal to the three circles x^(2) + y^(2) + a(i)x + b...

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  6. A circle passes through origin and has its centre on y = x . If it cut...

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  7. Find the equation of the circle passing through the origin, having its...

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  8. The circle with centre on the line 2x - 2y + 9 = 0 and cutting the c...

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  9. The equation of the circle cutting orthogonally the circles x^(2) + y...

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  10. The equation of the circle cutting orthogonally the circles x^(2) + y...

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  11. The equation of the circle cutting orthogonally the circule x^(2) + y...

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  12. The condition that the circles which passes through the points (0,a),(...

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  13. The locus of the centre of the circle which cuts the circles x^(2) + ...

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  14. The locus of the centre of the circle which cuts the circles x^(2) + ...

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  15. (1, 2) is a point on the circle x^2 + y^2 + 2x - 6y + 5 = 0 which is o...

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  16. The point (3,1) is a point on a circle C with centre (2,3) and C is or...

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  17. The points A(2, 3) and B(-7, -12) are conjugate points w.r.t to the ci...

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  18. The locus of centres of all circles which touch the line x = 2a and cu...

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  19. If a circle passes through the point (a,b) and cuts the circle x^(2) ...

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  20. the radical axis of the circles x^(2) + y^(2) + 3x + 4y - 5 = 0 " ...

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