Home
Class 12
MATHS
In Delta ABC if a=-1,b=2, angle C=...

In ` Delta ABC ` if a=-1,b=2, `angle C=60 ^@` then ` 4Delta ^2 +c^2` =

A

6

B

3

C

`(sqrt(3))/(2)`

D

`9`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TS EAMCET 2016

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematic|80 Videos

  • TS EAMCET 2018 (4 MAY SHIFT 1)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematics|80 Videos

Similar Questions

Explore conceptually related problems

In Delta ABC, if a=4, b=3 angle A=60^@ , then c is the root of the equation

In Delta ABC, if a=4,b=5,c=60^@ , then c=

In Delta ABC , if angle A = 60 ^(@) then ( 1+ (a)/(c ) +(b) /(c ) ) (1+ ( c )/( b) - (a)/(b)) =

In Delta ABC , if a= 2, b= 3 , c=4 then cos A =

In Delta ABC, if a= 2, B=120^@, C=30^@ , then the area of the triangle is

TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET 2017-MATHEMATICS
  1. Let a = 2 hati + hatj - 3 hatk and b - hati + 3 hatj + 2 hatk ...

    Text Solution

    |

  2. The local maximum of y= x^3-3x^3+5 is attained at

    Text Solution

    |

  3. In the expansion of (1+x)^n , the coefficients of pth and (p+1) ...

    Text Solution

    |

  4. If f(x) ={{:(sin x , if x le 0),( x^2 + a^2, if 0 lt x lt 1 ),(b...

    Text Solution

    |

  5. IF cos h ^(-1) x= 2 log (e) ( sqrt(2)+1), then x=

    Text Solution

    |

  6. For any integer n ge 1, underset(k=1) overset(n) sum K ( K+2)=

    Text Solution

    |

  7. The foci of the ellipse 25 x ^2 +4y^2 + 100 x-4y +100 =0 are

    Text Solution

    |

  8. ([(1+ cos ((pi)/(12))+ i sin ((pi )/(12)))/(1+ cos ((pi)/(12))-i sin...

    Text Solution

    |

  9. If the range of the function f(x) =- 3x -3 is { 3,-6,-9,-18} , ...

    Text Solution

    |

  10. In Delta ABC if a=-1,b=2, angle C=60 ^@ then 4Delta ^2 +c^2 ...

    Text Solution

    |

  11. IF the magnitudes of a,b, and a+b are respectively 3,4 and 5 th...

    Text Solution

    |

  12. IF int f(x) cos x dx =1/2 (f(x))^2+C and f(0) =0 then f'(0) =

    Text Solution

    |

  13. IF alpha and beta are the roots of the equation ax ^2 +bx ...

    Text Solution

    |

  14. IF A((pi)/(3) ) ,B ((pi)/(6)) are the points on the circle repres...

    Text Solution

    |

  15. IF the pair of straight lines xy - x -y +1=0 and the line x ...

    Text Solution

    |

  16. The number of solutions of cos 2 theta = sin theta in (0 , 2 pi...

    Text Solution

    |

  17. The length of the sides of a triangle are 13 , 14 and 15 if...

    Text Solution

    |

  18. IF A and B are variances of the 1 ^(st) 'n' even number and 1...

    Text Solution

    |

  19. IF the line x-y=-4k is a tangent to the parabola y^2 = 8x at P ...

    Text Solution

    |

  20. IF A and B are events having probabilities P(A) = 0.6 ,P(B ) ...

    Text Solution

    |