Home
Class 12
MATHS
If, in a Delta ABC, (s - b)(s-c) = x cdo...

If, in a `Delta ABC, (s - b)(s-c) = x cdot sin^(2) (A/2)`, then : x =

A

bc

B

ca

C

ab

D

abc

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART-B: MASTERING THE BEST|27 Videos

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MASTERING THE BEST - ALL TOPICS|128 Videos

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE (B) Properties of triangles|27 Videos

  • THREE DIMENSIONAL GEOMETRY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|39 Videos

  • VECTORS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|20 Videos

Similar Questions

Explore conceptually related problems

In DeltaABC if 2s =a +b+c and (s-b)(s-c)=x" sin"^(2)(A)/(2) ,then the value of x is

If in a Delta ABC, cos B = (sin A)/(2 sin C), then the triangle is

If, in Delta ABC, cos A = cos B cdot cos C , then: cot B cdot cot C= .....

If in Delta ABC, (a -b) (s-c) = (b -c) (s-a) , prove that r_(1), r_(2), r_(3) are in A.P.

In Delta ABC, a^(2)(s-a)+b^(2)(s-b)+c^(2)(s-c)=

If, in Delta ABC, 3a = b + c then: cot (B/2) cdot cot (C/2) = .....

In Delta ABC a cdot sin(B - C) + b cdot sin (C - A) + c cdot sin (A - B) =

In Delta ABC , if sin^(2)A + sin^(2)B = sin^(2)C , then show that a^(2) + b^(2) = c^(2) .

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - B : MASTERING THE BEST
  1. The number of values of x in the interval [0, 5pi] satisfying the equa...

    Text Solution

    |

  2. If, in triangleABC, (s-a)(s-b)=s(s-c), then: angleC=

    Text Solution

    |

  3. If, in a Delta ABC, (s - b)(s-c) = x cdot sin^(2) (A/2), then : x =

    Text Solution

    |

  4. In a Delta ABC, sin B : sin (A + B) =

    Text Solution

    |

  5. If, in a Delta ABC, c^(2) + a^(2) - b^(2) = ac, then : /B =

    Text Solution

    |

  6. In a Delta ABC, if : a = 16, b = 24 and c = 20 then : cos(B/2) =

    Text Solution

    |

  7. In Delta ABC, cscA (sin B cos C + cos B sin C) =

    Text Solution

    |

  8. If sides a,b,c of Delta ABC are in A.P., then : sin (A/2) cdot sin (C...

    Text Solution

    |

  9. If, in a Delta ABC, a = 6cm , b = 8 cm, c = 10cm, then : sin 2A =

    Text Solution

    |

  10. In DeltaABC if /C=90^@ then R+r=

    Text Solution

    |

  11. In Delta ABC, (cos((B-C)/2))/(cos (A/2))=

    Text Solution

    |

  12. In DeltaABC, if sin A sin B=(ab)/(c^(2)), then the triangle is

    Text Solution

    |

  13. If : a = 9, b = 8 and c = x satisfies 3 cos C = 2, then : x =

    Text Solution

    |

  14. If in a Delta ABC, b =sqrt3, c=1 and B-C =90^(@), then angle A is

    Text Solution

    |

  15. In Delta ABC, if : a = 2 cm , b = 3cm and c = 4cm, then /A =

    Text Solution

    |

  16. If : a = 2, b = 3, c = 5 in Delta ABC, then : /C=

    Text Solution

    |

  17. If one side of a triangle is double the other, and the angles on oppos...

    Text Solution

    |

  18. In a triangle ABC, if (cos A)/(a) =(cos B)/(b ) =(cos C)/(c) and the ...

    Text Solution

    |

  19. In a A B C ,if=2,/B=60^0a n d/C=75^0 , then b= sqrt(3) (b) sqrt(6) ...

    Text Solution

    |

  20. In triangleABC, If A= 30^(@), b=8, a=6 where B = sin^(-1)x, then: x=

    Text Solution

    |