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If the circles of same radius 'a' and ce...

If the circles of same radius 'a' and centres at (2, 3) and (5, 6) cut orthogonally, then a =

A

3

B

4

C

6

D

10

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B
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AAKASH SERIES-SYSTEM OF CIRCLES-Exercise-II (Class work)
  1. The points A(2, 3) and B(-7, -12) are conjugate points w.r.t to the ci...

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

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  3. If the circles of same radius 'a' and centres at (2, 3) and (5, 6) cut...

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  4. If the circle x^2 + y^2 + 2x - 2y + 4 = 0 cuts the circle x^2 + y^2 + ...

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  5. A line 'I' meets the circle x^2 + y^2 =61 in A, B and P(-5, 6) is such...

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  6. If P and Q are the Points of intersection of the circles x^2 + y^2 + 3...

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  7. From the point P(2, 3) tangents PA,PB are drawn to the circle x^2+y^2-...

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  8. The common chord of x^2 + y^2 - 4x - 4y = 0 and x^2 + y^2 = 16 substen...

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  9. x^2+y^2+2lambdax+5=0 and x^2+y^2+2lambday+5=0 are two circles. P is a ...

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  10. The centres of the circles are (a, c) and (b, c) and their radical axi...

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  11. (a,0) and (b, 0) are centres of two circles belonging to a co-axial sy...

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  12. If the circles x^2 + y^2 + 2ax + cy + a =0 and x^2 + y^2 - 3ax + dy - ...

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  13. The radical centre of the circles x^2+y^2-x+3y-3=0 , x^2+y^2-2x+2y-2=0...

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  14. The centre of the circle orthogonal to the circles x^2+y^2+4y+1=0 , x^...

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  15. The point from which the tangents to the circles x^2+y^2-8x+40=0, 5x^2...

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  16. You are given n ( ge 3) circles having different radical axes and rad...

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  17. If A, B, C are the centres of three circles touching mutually external...

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  18. The radical centre of the three circles described on the three sides o...

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  19. ABC is a triangle. The radical centre of the circles with AB, BC, CA a...

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  20. A, B, C are the centres of three circles of equal radii which donot to...

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