Home
Class 12
MATHS
The angle between the pair of tangents f...

The angle between the pair of tangents from the point `(1, 1/2)` to the circle `x^2 + y^2 + 4x + 2y -4 = 0` is

A

`cos^(-1).(4)/(5)`

B

`sin^(-1).(4)/(5)`

C

`sin^(-1).(3)/(5)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CIRCLES

    OBJECTIVE RD SHARMA|Exercise Exercise|132 Videos

  • CARTESIAN PRODUCT OF SETS AND RELATIONS

    OBJECTIVE RD SHARMA|Exercise Chapter Test|31 Videos

  • COMPLEX NUMBERS

    OBJECTIVE RD SHARMA|Exercise Chapter Test|59 Videos

Similar Questions

Explore conceptually related problems

The angle between the pair of tangents drawn from the point (2,4) to the circle x^(2)+y^(2)=4 is

The angle between the tangents drawn from the point (4, 1) to the parabola x^(2)=4y is

The equation of pair of tangents drawn from the point (0,1) to the circle x^(2) + y^(2) – 2x + 4y = 0 is–

The angle between the tangents drawn from the point (1,4) to the parabola y^(2)=4x is

The angle between tangents from the point (-1 ,-1) to the parabola y^(2)=4x is

Point (1,2) relative to the circle x^(2) + y^(2) + 4x - 2y - 4 = 0 is a/an

Find the equation of the two tangents from the point (0,1) to the circle x^(2)+y^(2)-2x+4y=0

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

OBJECTIVE RD SHARMA-CIRCLES-Chapter Test
  1. The circle x^2 + y^2+ 4x-7y + 12 = 0 cuts an intercept on y-axis equal...

    Text Solution

    |

  2. Prove that the equation of any tangent to the circle x^2+y^2-2x+4y-4=0...

    Text Solution

    |

  3. The angle between the pair of tangents from the point (1, 1/2) to the...

    Text Solution

    |

  4. The intercept on line y = x by circle x^2 + y^2- 2x = 0 is AB. Find eq...

    Text Solution

    |

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

    Text Solution

    |

  6. Locus of the middle points of chords of the circle x^2 + y^2 = 16 whic...

    Text Solution

    |

  7. Two tangents to the circle x^2 +y^2=4 at the points A and B meet at P(...

    Text Solution

    |

  8. A tangent is drawn to the circle 2(x^(2)+y^(2))-3x+4y=0 and it touch...

    Text Solution

    |

  9. the length of the chord of the circle x^(2)+y^(2)=25 passing through ...

    Text Solution

    |

  10. If the points A(2, 5) and B are symmetrical about the tangent to the c...

    Text Solution

    |

  11. The equation of the circle of radius 2sqrt(2) whose centre lies on the...

    Text Solution

    |

  12. Prove that the maximum number of points with rational coordinates on a...

    Text Solution

    |

  13. The equation of a circle C is x^(2)+y^(2)-6x-8y-11=0. The number of re...

    Text Solution

    |

  14. Two circles, each of radius 5, have a common tangent at (1, 1) whose e...

    Text Solution

    |

  15. The number of points on the circle 2(x^(2)+y^(2))=3x which are at a di...

    Text Solution

    |

  16. A ray of light incident at the point (-2, -1) gets reflected from the ...

    Text Solution

    |

  17. The point on the straight line y = 2x + 11 which is nearest to the cir...

    Text Solution

    |

  18. Extremities of a diagonal of a rectangle are (0, 0) and (4, 3). The eq...

    Text Solution

    |

  19. The equation of the circle which has a tangent 2x-y-1=0 at (3, 5) on i...

    Text Solution

    |

  20. The angle of intersection of the circles x^(2)+y^(2)=4 and x^(2)+y^(2...

    Text Solution

    |