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If line 3x - y + c = 0 touches circl...

If line ` 3x - y + c = 0 ` touches circle ` x^(2) + y^(2) - 2x + 8y - 23 =0 ` , then c =

A

13,-27

B

`-13,27`

C

`13 , 27`

D

`-13,-27`

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The correct Answer is:
A
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MARVEL PUBLICATION-CIRCLE AND CONICS -MULTIPLE CHOICE QUESTIONS
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  3. If line 3x - y + c = 0 touches circle x^(2) + y^(2) - 2x + 8y - 2...

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  7. If line 4x + 3y + k = 0 " touches circle " 2x^(2) + 2y^(2) = 5x , t...

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  8. Equation of circle which touches line x = y at the origin , and passe...

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  9. If the line (x)/(a) + (y)/(b)= 1 touches the circle x^(2) + y^(2) ...

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  10. Find the equation of the circle which touches both the axes and the ...

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  11. The intercet on the line y = x by the circle x^(2) + y^(2) - 2x = 0 ...

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  12. Find the greatest distance of the point P(10 ,7) from the circle x^2+y...

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  13. Equation of parabola with vertex (0,0) and focus (2,0) is

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  14. Equation of parabola with vertex (0,0) and focus (2,0) is

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  15. Equation of parabola with vertex (0,0) , X-axis as axis of symmetry , ...

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  16. Equation of parabola with focus (0,2) and directrix y + 2 = 0 is

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  17. Equation of parabola with vertex (0,0) Y-axis ax axis of symmetry and...

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  18. Ends of latus-rectum of parabola 3y^(2) = 20 x are

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  19. Enda of latus-rectum of parabola 3x^(2) + 8y = 0 are

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  20. Focal distance and parameter of the point ((1)/(2), 2) on the parabola...

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