Home
Class 12
MATHS
In triangle ABC if the line joining ince...

In triangle ABC if the line joining incenter to the circumcenter is parallel to the base BC, then the value of `(cosB + cosC-1)` is equal to

A

1

B

2

C

3

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Section-C (Objective Type Questions More than one options are correct )|45 Videos

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Section D (Linked Comprehension Type Questions)|24 Videos

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Assignment Section-B (Objective Type Questions (One option is correct))|1 Videos

  • THREE DIMENSIONAL GEOMETRY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - J|10 Videos

  • VECTOR ALGEBRA

    AAKASH INSTITUTE|Exercise SECTION-J (Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

In triangle ABC,line joining the circumcenter and orthocentre is parallel to side AC,then the value of tan A tan C is equal to sqrt(3)(b)3(c)3sqrt(3)(d) none of these

In triangle ABC, the line joining the circumcenter and incenter is parallel to side AC, then cos A + cos C is equal to

In triangle ABC, line joining the circumcenter and orthocenter is parallel to side AC, then the value of tan A tan C is equal to

In a triangle ABC,the line joining the circumcentre and incentre is parallel to BC, then cos B+cos C is equal to:

In triangle ABC ,the line joining the circumcenter and incenter is parallel to side AC, then cos A+cos C is equal to -1 (b) 1 (c) -2(d)2

Let the line joining through orthocentre and circumcentre of the triangle ABC is parallel to the base BC .If tan B=k cot C then the value of k is equal to

AAKASH INSTITUTE-TRIGNOMETRIC FUNCTIONS -Section-B (Objective Type Questions One option is correct)
  1. In triangleABC, if a^(2)+b^(2)+c^(2)=ac+ab sqrt(3), then

    Text Solution

    |

  2. In a triangle ABC, ab and c are the sides of the triangle satisfying t...

    Text Solution

    |

  3. In triangleABC, which is not right angled, if p=sinA sinB sinC = and q...

    Text Solution

    |

  4. In triangleABC, if R/r le 2, and a=2, then triangle is equal to (trian...

    Text Solution

    |

  5. In triangleABC, If r(1), r(2), r(3) are exradii opposites to angles A,...

    Text Solution

    |

  6. If in a triangle ABC , 2(cosA)/a+(cosB)/b+2(cosC)/c=a/(bc)+b/(ca), ...

    Text Solution

    |

  7. In triangle ABC if the line joining incenter to the circumcenter is pa...

    Text Solution

    |

  8. With usual notations, if in a triangle ABC (b+c)/(11) = (c+a)/(12) = ...

    Text Solution

    |

  9. Consider a regular polygon of 12 sides each of length one until, then ...

    Text Solution

    |

  10. If the perimeter of a triangle is 6, then its maximum area is

    Text Solution

    |

  11. In a triangle ABC, If A=B=120^(@) and R=8r, then the value of cosC is

    Text Solution

    |

  12. In a triangle ABC, we have acosB+bcosC+ccosA=(a+b+c)/2 where A, B, ...

    Text Solution

    |

  13. A regular pentagons is inscribed in a circle. If A(1) and A(2) represe...

    Text Solution

    |

  14. If a^2 +b^2+c^2 = 8R^2 , then the triangle is

    Text Solution

    |

  15. O is the circumcentre of the triangle ABC and R1,R2,R3 are the radii o...

    Text Solution

    |

  16. In triangleABC, if r(1)=2r(2) = 3r(3), then

    Text Solution

    |

  17. In triangleABC, the expression (b^(2)-c^(2))/(asin(B-C)) + (c^(2)-a^2...

    Text Solution

    |

  18. In a triangle ABC. If triangle^(2) = (a^(2)b^(2)c^(2))/(2(a^(2)+b^(2)+...

    Text Solution

    |

  19. ABCD is a trapezium such that AB and DC are parallel and BC is perpend...

    Text Solution

    |

  20. If the median of triangle ABC through A is perpendicular AB, then the ...

    Text Solution

    |