Home
Class 11
MATHS
If circle x (x -1) + y (y -1) = c(x + y...

If circle ` x (x -1) + y (y -1) = c(x + y -1) ` touches X-axis , then c =

A

4

B

1

C

`-1`

D

`-4`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CIRCLE AND CONICS

    MARVEL PUBLICATION|Exercise MISCELLANEOUS MCQs|50 Videos
  • CIRCLE AND CONICS

    MARVEL PUBLICATION|Exercise MISCELLANEOUS MCQs|50 Videos
  • BERNOULLI TRIALS AND BINOMIAL DISTRIBUTION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|79 Videos
  • PROBABILITY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|239 Videos

Similar Questions

Explore conceptually related problems

If the circle x ^(2) + y^(2) + 2gx + 2fy+ c=0 touches X-axis, then

If the circle x ^(2) + y ^(2) - 6x - 8y+ (25 -a ^(2)) =0 touches the axis of ,y then a equals.

If the circle x ^(2) +y ^(2) - 6x - 8y + (25 -a ^(2)) =0 touches the axis of x, then a equals

If the circle x^(2)+y^(2)+2gx+2fy+c=0 touches x- axis at (x_(1),0) then x^(2)+2gx+c =

If the circle x^(2)+y^(2)+2gx+2fy+c=0 touches y -axis then the condition is

10 C & -10C are placed at y = 1 & y = -1 m on y - axis. 1C charge is placed on x-axis at x = +1m. The change in PE of system when 1C is displaced from x = +1 to x = -1m keeping other two charges fixed is

MARVEL PUBLICATION-CIRCLE AND CONICS -MULTIPLE CHOICE QUESTIONS
  1. Equation of diameter of circle (x -5) (x - 7) (y -1) = 0 , paral...

    Text Solution

    |

  2. Equations of diameters of circle (x-5)(x-1) + (y - 7) (y-1) = 0 ....

    Text Solution

    |

  3. If circle x (x -1) + y (y -1) = c(x + y -1) touches X-axis , then c...

    Text Solution

    |

  4. Radii of circles x^(2) + y^(2) = 1, x^(2) + y^(2) - 2x - 6y= 6 and ...

    Text Solution

    |

  5. A circle of radius 2 lies in the first quadrant and touches both the a...

    Text Solution

    |

  6. Find the equation of the circle the end points of whose diameter are t...

    Text Solution

    |

  7. The sides of a square are x=2,x=3,y=1andy=2. Find the equation of the ...

    Text Solution

    |

  8. If (2,-1) lies on x^(2) + y^(2) + 2gx + 2fy + c = 0 , which is conc...

    Text Solution

    |

  9. If one end of a diameter of the circle x^2 + y^2 - 8x - 14y+c=0 is the...

    Text Solution

    |

  10. If ends of a diameter of a circle are (-4,3) and (12,-1) , then y-i...

    Text Solution

    |

  11. If abscissas and ordinates of points A , B are roots of equation ...

    Text Solution

    |

  12. Equation of that diameter of circle x^(2) + y^(2) - 6x + 2y - 8 = 0 ...

    Text Solution

    |

  13. Equation of circle , concentric with circle x^(2) + y^(2) - 6x + 12...

    Text Solution

    |

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

    Text Solution

    |

  15. If equation of a circle is (4a - 3) x^(2) +ay^(2) + 6x - 2y + 2 = 0 ,...

    Text Solution

    |

  16. If the equation 3x^(2) + 3y^(2) + kxy + 9x + (k - 6) y + 3 = 0 rep...

    Text Solution

    |

  17. Equation x^(2) + y^(2) - 8x + 6y + 25 = 0 represents

    Text Solution

    |

  18. If lines 12 x + 5y + 16 = 0 " and " 12 x + 5y - 10 = 0 both touch ...

    Text Solution

    |

  19. Abscissas and ordinates of points A and B are roots of equation x^(...

    Text Solution

    |

  20. Two points on the circle x^(2) + y^(2) - 12x - 16y + 75 = 0 , one ...

    Text Solution

    |