Home
Class 11
MATHS
If (a+ b+ c) (b+ c-a) = kbc then...

If `(a+ b+ c) (b+ c-a) = kbc ` then

A

` k gt 0 `

B

` 0 lt klt 4 `

C

` k lt 0 `

D

` k ge 4`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE EXERCISE|132 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - I ( Straight Objective Type Questions ) |58 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise EXERCISE - 1|98 Videos

  • PLANES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|30 Videos

  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos

Similar Questions

Explore conceptually related problems

The area of the triangle formed by ( a , b + c ) , (b , c +a) and ( c , a + b) is

a (a - b) + b (b - c) + c (c - a) = __

(a + b) xx c + (b + c) xx a + (c + a) xx b =

If the vectors (a, b, c), (b, c, a) and (c, a, b) are linealy dependent then

AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - II
  1. ( cot ""(A)/(2) + cot ""(B)/(2)+ cot ""( C )/( 2))/( cot A + cot B + ...

    Text Solution

    |

  2. In a triangle ABC, if cot""A/2 cot""B/2=c, cot""B/2 cot""C/2=a and cot...

    Text Solution

    |

  3. If (a+ b+ c) (b+ c-a) = kbc then

    Text Solution

    |

  4. In Delta ABC ,if 5 cos C + 6 cos B = 4 and 6 cos A + 4 cos C = 5 " th...

    Text Solution

    |

  5. In a triangle ABC, (s-a)/11=(s-b)/12=(s-c)/13, then tan^2 (A//2)=

    Text Solution

    |

  6. In Delta ABC, if sin^2""A/2, sin^2""B/2,sin^2""C/2 are in H.P, then a,...

    Text Solution

    |

  7. In Delta ABC, if tan A, tan B, tan C are in H.P., then a^2,b^2,c^2 are...

    Text Solution

    |

  8. If in Delta ABC the sides a,b,c are in A.P. Then

    Text Solution

    |

  9. If the altitudes of a triangle are in arithmetic progression, then the...

    Text Solution

    |

  10. In Delta ABC if b=20,c=21 and sin A=3//5, then a=

    Text Solution

    |

  11. In Delta ABC, if sin A: sin C=sin (A-B): sin (B-C), then a^2,b^2,c^2 a...

    Text Solution

    |

  12. If cot ""^(A)/(2) : cot ""(B) /(2) : cot "" ( C )/(2) = 1: 4: 15 , ...

    Text Solution

    |

  13. If sin A : sin B : sin C = 3: 4: 5 then tan ""(A)/(2) : tan ""(B)/(2...

    Text Solution

    |

  14. In Delta ABC, if tanA: tan B: tan C=1:2:3, then sin A: sin B: sin C=

    Text Solution

    |

  15. In Delta ABC if a: b: c = 7 : 8: 9 , then cos A : cos B : cos C =

    Text Solution

    |

  16. Area of triangle ABC is a^(2) - (b-c)^(2) then tan A =

    Text Solution

    |

  17. a^(2) cot A+ b^(2) cot B+ c ^(2) cot C =

    Text Solution

    |

  18. In a triangle , if the larger side is 7 and one of the angle is 120 ^...

    Text Solution

    |

  19. In Delta ABC, (cos A)/(c sin B)+(cos B)/( a sin C)+(cos C)/( b sin A)=

    Text Solution

    |

  20. If alpha,beta,gamma are the lengths of the altitudes of Delta ABC, the...

    Text Solution

    |