Home
Class 12
MATHS
The radius of the ciclle x^(2)+y^(2)+4x+...

The radius of the ciclle `x^(2)+y^(2)+4x+6y+13=0` is

A

`sqrt(26)`

B

`sqrt(13`

C

`sqrt(23)`

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THE CIRCLE

    BITSAT GUIDE|Exercise BITSAT ARCHIVES |18 Videos

  • STATISTICS

    BITSAT GUIDE|Exercise BITSAT ARCHIVES |4 Videos

  • THREE DIMENSIONAL GEOMETRY

    BITSAT GUIDE|Exercise BITSAT ARCHIVES |11 Videos

Similar Questions

Explore conceptually related problems

The radius of the circle x^(2) + y^(2) + 4x - 6y + 12 = 0 is

Equation of the circle concentric with the circle x^(2) + y^(2) + 8x + 10 y - 7 = 0 , and passing through the centre of the circle x^(2) + y^(2) - 4x - 6y = 0 ,is

The length of the latus rectum of the ellipse 2x^(2) + 3y^(2) - 4x - 6y - 13 = 0 is

The radical center of the circles x^(2)+y^(2)-4x-6y+5=0 , x^(2)+y^(2)-2x-4y-1=0 , x^(2)+y^(2)-6x-2y=0 .

Find the number of common tangents that can be drawn to the circles x^(2)+y^(2)-4x-6y-3=0 and x^(2)+y^(2)+2x+2y+1=0

The value of k for which the circle x ^(2) +y ^(2) - 4x + 6y + 3=0 will bisect the circumference of the circle x ^(2) + y ^(2) + 6x - 4y + k =0 is

Centre and radius of circle 2x^(2) + 2y^(2) - 6x + 4y - 3 = 0 are

The number of direct common tangents that can be drawn to the circles x^(2)+y^(2)+4x-6y-12=0 and x^(2)+y^(2)-8x+10y+16=0 is/are

BITSAT GUIDE-THE CIRCLE -BITSAT ARCHIVES
  1. If the equation of circle which passes through the origin and cuts off...

    Text Solution

    |

  2. Find the equation of the circle circumscribing the triangle formed by ...

    Text Solution

    |

  3. The length of tangent from (5,1) to the circle x^(2)+y^(2)+6x-4y-3=0 ...

    Text Solution

    |

  4. Find the angle between the two tangents from the origin to the circle ...

    Text Solution

    |

  5. If a circle passes through (0,0) and (a,0) and (0,b), then the coordin...

    Text Solution

    |

  6. If the sum of the distance of a point P from two perpendicular lines i...

    Text Solution

    |

  7. If the lines 2x-3y=5and3x-4y=7 are two diameters of a circle of radius...

    Text Solution

    |

  8. Find the radius of the circle with the polar equation r^2-8r(sqrt3cost...

    Text Solution

    |

  9. The centre of circle whose normals are x^(2)-2xy-3x+6y=0 is

    Text Solution

    |

  10. The centres of a set of circles, each of radius 3, lie on the circle x...

    Text Solution

    |

  11. If the two circles x^(2)+y^(2)-2x+22y+5=0andx^(2)+y^(2)+14x+6y+k=0 int...

    Text Solution

    |

  12. The radius of the ciclle x^(2)+y^(2)+4x+6y+13=0 is

    Text Solution

    |

  13. The centre of the circles x=2+3costheta,y=3sintheta-1 is

    Text Solution

    |

  14. The equation to the circle with centre (2,1) and touching the line 3x ...

    Text Solution

    |

  15. The condition for a line y = 2x + c to touch the circle x^(2) + y^(2) ...

    Text Solution

    |

  16. Let P(x(1),y(1))andQ(x(2),y(2)) be two points such that their abscissa...

    Text Solution

    |

  17. The number of common tangents to the circles x^(2)+y^(2)+2x+8y-23=0...

    Text Solution

    |

  18. If x/alpha+y/beta=1 touches the circle x^2+y^2=a^2 then point (1/alpha...

    Text Solution

    |