Home
Class 12
MATHS
If in DeltaABC , a = 4,b=3, A = 60^(@) ...

If in ` DeltaABC , a = 4,b=3, A = 60^(@)` then c is a root of the equation .

A

`c^(2) - 3c - 7 = 0`

B

`c^(2) - 3c + 7 = 0`

C

`c^(2) + 3c + 7 = 0`

D

`c^(2) + 3c - 7 = 0`

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 - A : BUILDING-UP THE BASE (B) Properties of triangles|27 Videos
  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - B : MASTERING THE BEST|58 Videos
  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise HARDER SOLVED EXAMPLES|43 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 a DeltaABC , if a = 4, b = 3 and angleA=60^(@) , then c is a root of the equation

In a triangle ABC,a=4,b=3,/_A=60^(@) then c is root of the equation c^(2)-3c-7=0 (b) c^(2)+3c+7=0(c)c^(2)-3c+7=0(d)c^(2)+3c-7=0

In a triangle ABC, a= 4, b = 3, angleA= 60° . Then, c is the root of the equation

In a triangle ABC a= 4 , b= 3 , angle A =60 ^@ ,Then c is root of equation :-

In a DeltaABC , if a = 4, b = 5 , c = 6 then angle C is equal to

If a DeltaABC, b=2, C=60^(@), c=sqrt(6) , then a =

If in a DeltaABC , c = 3b and C - B = 90°, then tanB=

In a DeltaABC , if the sides a, b, c are the roots of the equation x^(3)-11x^(2)+38x-40=0 , then (cosA)/a+(cosB)/b+(cosC)/c=

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
  1. In a DeltaABC, if A=45^(@) and B=75^(@), then a+sqrt(2)c=

    Text Solution

    |

  2. If in DeltaABC,(cosA)/(a)=(cosB)/(b)=(cosC)/(c) and side a=2, then th...

    Text Solution

    |

  3. If in DeltaABC , a = 4,b=3, A = 60^(@) then c is a root of the equati...

    Text Solution

    |

  4. If in a triangle ABC, 3sinA=6sinB=2sqrt3sinC then the value of /A=

    Text Solution

    |

  5. A circle is inscribed in an equilateral triangle of side a. The area o...

    Text Solution

    |

  6. If, in Delta ABC, angle A,B,C are in A.P. And b : c = sqrt(3) : sqrt(2...

    Text Solution

    |

  7. If, in Delta ABC, a = 2b and A = 3B, then A :

    Text Solution

    |

  8. If Delta ABC, is right angled at C, then: 4s (s - a)(s - b)(s-c) = ....

    Text Solution

    |

  9. If sin (A + B + C) = 1, tan (A - B) = 1//sqrt(3) and "sec" (A + C) = 2...

    Text Solution

    |

  10. If H is the orthocentre of the Delta ABC, then find AH.

    Text Solution

    |

  11. If the side of a right-angled triangled are in A.P., then tangents of ...

    Text Solution

    |

  12. If, in Delta ABC, a = 13 cm, b = 13cm, c = 5 cm, then cosC is

    Text Solution

    |

  13. In the Delta ABCA gt B. If the measures of A and B satisfy the equatio...

    Text Solution

    |

  14. In Delta ABC , a= 6 ,b=3 and cos (A-B) = 4/5 .Then are of triangle i...

    Text Solution

    |

  15. If, in Delta ABC, tan A + tan B + tan C gt 0, then the triangle is

    Text Solution

    |

  16. In a DeltaABC, tan A+tan B+tan C =6 and tan A tan B = 2, then the tria...

    Text Solution

    |

  17. If, in Delta ABC, a^(4) + b^(4) + c^(4) = 2a^(2)(b^(2) + c^(2)) then :...

    Text Solution

    |

  18. If, Delta ABC is right angled at C, then : tanAtanB = ....

    Text Solution

    |

  19. In a right of a triangle, the hypotenuse is 2 times the perpendicular....

    Text Solution

    |

  20. Two sides of a triangle are (sqrt(3)+1) and (sqrt(3)-1), and the angle...

    Text Solution

    |