Home
Class 12
MATHS
If in a Delta ABC, b =sqrt3, c=1 and B-C...

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

A

`30^(@)`

B

`45^(@)`

C

`75^(@)`

D

`15^(@)`

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

If in a triangle ABC,b=sqrt(3),c=1 and B-C-90^(0), then angle A is

In Delta ABC , if: b = sqrt(3), c = 1 and A = 30^(@) , then the largest angle of the triangle is

In a triangle ABC,a/b=2+sqrt(3) and /_C=60^(@) then angle A and B is

In a Delta ABC if b=a(sqrt(3)-1) and /_C=30^(@) then the measure of the angle A is

In triangle ABC, b=sqrt3 c=1 and angleA=30^(@) then the measure of the largest angle of the triangle,is

In a Delta ABC b= sqrt(3)+1, c=sqrt(3)-1 , angle A = 60 ^@ then the value of tan (B-C)/(2) is :-

In a triangle ABC, b = sqrt(3) cm, c = 1 cm, angle A = 30^(@) , what is the value of a ?

If an a triangle ABC,b=3c and C-B=90^(@), then find the value of tan B

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - B : MASTERING THE BEST
  1. In DeltaABC, if sin A sin B=(ab)/(c^(2)), then the triangle is

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  10. In Delta ABC, if : sin(A/2) .sin (C/2) = sin (B/2) then : semiperimete...

    Text Solution

    |

  11. In Delta ABC, if : a = 2, b = 3 and sin A = 2//3, then : /B =

    Text Solution

    |

  12. In Delta ABC, if : a = 5, b = 4, A = pi/2 + B, then : /C =

    Text Solution

    |

  13. In Delta ABC, if : A = 30^(@), C = 60^(@), a =sqrt(2) then b and c

    Text Solution

    |

  14. If, in a Delta ABC, angle C is 45^(@) then : (1 + cot A) (1 + cot B)...

    Text Solution

    |

  15. If DeltaABC is a right angled at C, then tan A + tan B is equal to

    Text Solution

    |

  16. If a = 7, b = 4sqrt(3) and c = sqrt(13), then the smallest angle of De...

    Text Solution

    |

  17. In a Delta ABC, if b=20, c=21and sin A =3/5, then the value of a is

    Text Solution

    |

  18. In Delta ABC, if: b = sqrt(3), c = 1 and A = 30^(@), then the largest ...

    Text Solution

    |

  19. The lengths of the sides of a triangle are alpha-beta, alpha+beta and ...

    Text Solution

    |

  20. In Delta ABC, if : 2s = a + b + c, then: (s(s - a))/(bc) =

    Text Solution

    |