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A circle x^2+y^2+4x-2sqrt(2)y+c=0 is the...

A circle `x^2+y^2+4x-2sqrt(2)y+c=0` is the director circle of the circle `S_1a n dS_1` is the director circle of circle `S_2,` and so on. If the sum of radii of all these circles is 2, then the value of `c` is `ksqrt(2)` , where the value of `k` is___________

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CENGAGE PUBLICATION-CONIC SECTIONS-All Questions
  1. The circle x^2+y^2-4x-4y+4=0 is inscribed in a variable triangle O A B...

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  2. The line 9x+y-18=0 is the chord of contact of the point P(h , k) wit...

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  3. A circle x^2+y^2+4x-2sqrt(2)y+c=0 is the director circle of the circle...

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  4. Tangents are drawn to the circle x^2+y^2=9 at the points where it is ...

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  5. Find the length of the chord of contact with respect to the point on ...

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  6. The distance between the chords of contact of the tangent to the circl...

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  7. If 3x+y=0 is a tangent to a circle whose center is (2,-1) , then find ...

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  8. Find the number of common tangent to the circles x^2+y^2+2x+8y-23=0 an...

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  9. Two variable chords A Ba n dB C of a circle x^2+y^2=r^2 are such that ...

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  10. Find the equation of the chord of the circle x^2+y^2=9 whose middle po...

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  11. Find the circle of minimum radius which passes through the point (4, 3...

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  12. A variable chord is drawn through the origin to the circle x^2+y^2-2a ...

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  13. The radius of the tangent circle that can be drawn to pass through the...

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  14. Find the equation of the chord of the circle x^2+y^2=a^2 passing throu...

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  15. If the lines 2x-3y-5=0 and 3x-4y=7 are diameters of a circle of area 1...

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  16. Find the middle point of the chord of the circle x^2+y^2=25 intercepte...

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  17. Find the area of the triangle formed by the tangents from the point (4...

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  18. Equation of a circle with centre (4, 3) touching the circle x^2+y^2=1 ...

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  19. Find the equation of the tangent to the circle x^2 + y^2 - 2ax - 2ay +...

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  20. Find the condition if the circle whose equations are x^2+y^2+c^2=2a x ...

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