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If (4,2) and (k,-3) are conjugate points...

If (4,2) and (k,-3) are conjugate points with respect to `x^(2)+y^(2)-5x+8y+6=0` them k=

A

`28/3`

B

`-28/3`

C

`3/28`

D

`(-3)/28`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-CIRCLES-EXERCISE -I
  1. If (1, a), (b, 2) are conjugate points with renpcet to the circle x^(2...

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  2. If (1,1), (k,2) are conjugate points with respect to the circle x^(2)+...

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  3. If (4,2) and (k,-3) are conjugate points with respect to x^(2)+y^(2)-5...

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  4. If 3x+2y=3 and 2x+5y=1 are conjugate lines w.r.t the circle x^(2)+y^(2...

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  5. The condition for the lines lxk+my+n=0 and l(1)x+m(1)y+n(1)=0 to be co...

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  6. If kx+3y=1, 2x+y+5=0 are conjugate liens w.r.t the circle x^(2)+y^(2)-...

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  7. If (6,8),(k,2) are inverse points w.r.t the circle x^(2)+y^(2)=25 the...

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  8. The inverse point of (1,-1) with respect to the circle x^(2)+y^(2)=4, ...

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  9. The inverse of the point (1, 2) with respect to the circle x^(2) + y^(...

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  10. The piont where the line 4x - 3y + 7 = 0 touches the circle x^(2) + y^...

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  11. The equation of the chord of the circle x^(2)+y^(2)-4x+6y-3=0 having (...

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  12. The mid point of the chord x-2y+7=0 w.r.t the circle x^(2)+y^(2)-2x-10...

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  13. The pair of tangents from (2,1) to the circle x^(2)+y^(2)=4 is

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  14. The angle between the tangents drawn from the origin to the circle x^(...

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  15. The pair of tangents from origin to the circle x^(2)+y^(2)+4x+2y+3=0 i...

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  16. The pair of tangents from origin to x^(2)+y^(2)+4x+2y-3=0 is

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  17. The circles x^(2)+y^(2)-8x+6y+21=0, x^(2)+y^(2)+4x=10y-115=0 are

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  18. The circles x^(2)+y^(2)-12x+8y+48=0, x^(2)+y^(2)-4x+2y-4=0 are

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  19. The circles x^(2)+y^(2)-2x-4y-20=0, x^(2)+y^(2)+4x-2y+4=0 are

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  20. The number of common tangents to x^(2)+y^(2)=8, x^(2)+y^(2)=2 is

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