Home
Class 12
MATHS
A triangle ABC is such that sin(2A+B)= 1...

A triangle ABC is such that `sin(2A+B)= 1/2`. If A,B,C are in A.P. then the angle A,B,C are respectively

A

`(5pi)/12,pi/4,pi/3`

B

`pi/4,pi/3,(5pi)/(12)`

C

`pi/3,pi/4,(5pi)/(12)`

D

`pi/3,(5pi)/(12),pi/4`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC EQUATION

    MOTION|Exercise EXERCISE 2|16 Videos

  • TRIGONOMETRIC EQUATION

    MOTION|Exercise EXERCISE 3|28 Videos

  • TRIGONOMETRIC EQUATION

    MOTION|Exercise EXERCISE 4|10 Videos

  • TRIGNOMETRIC RATIOS & IDENTITIES

    MOTION|Exercise Exercise -4(Level -II)|9 Videos

  • VECTOR

    MOTION|Exercise EXERCISE - 4 ( LEVEL-II)|41 Videos

Similar Questions

Explore conceptually related problems

A triangle ABC is such that sin(2A+B)=(1)/(2) and If A,B and C are in A.P.,then find the value of A and C

ABC is a triangle such that sin(2A+B)=sin(C-A)=-sin(B+2C)=(1)/(2)*If(2A, and C are in AP.then the value of A,B and C are..

In any triangle ABC, if sin A , sin B, sin C are in AP, then the maximum value of tan ""B/2 is

If the anngle A,B,C of a Delta ABC are in A.P then :-

If in Delta ABC , sides a, b, c are in A.P. then

If in a Delta ABC,sin A,sin B,sin C are in AP then

If in a !ABC , sin A, sin B and sin C are in A.P, then

In any triangle ABC , if a^2,b^2,c^2 are in AP then that cot A , cot B , cot C are in are in A.P.

MOTION-TRIGONOMETRIC EQUATION-EXERCISE 1
  1. All solutions of the equation 2 sin theta + tan theta =0 are obtained...

    Text Solution

    |

  2. The most general solution of tan theta =-1 and cos theta = 1/sqrt 2 i...

    Text Solution

    |

  3. If 2cos^2(pi+x)+3 sin(pi+x) vanishes then the values of x lying in the...

    Text Solution

    |

  4. If x in [0, pi/2], then the number of roots of equation sin7x + sin4x ...

    Text Solution

    |

  5. (cos3theta)/(2cos2theta-1)=1/2 if (n in 1)

    Text Solution

    |

  6. sin3theta=4sinthetasin2thetasin4theta in 0<=theta<=pi has

    Text Solution

    |

  7. The set of values of x for which ("tan" 3x- "tan" 2x)/(1+"tan" 3 x "ta...

    Text Solution

    |

  8. Find the number of solutions of sintheta + 2sin2theta + 3sin3theta + 4...

    Text Solution

    |

  9. The number of solutions of |cosx|=sinx,0lexle4pi is-

    Text Solution

    |

  10. No. of solution in the equation x=4sinx when in [0,2pi]

    Text Solution

    |

  11. Find the number of solution of the equation 30|sinx|=x"in" 0lexle2pi

    Text Solution

    |

  12. Total number of solution of the equation 3x+2tanx= (5pi)/2 "in" x in [...

    Text Solution

    |

  13. The set of the solution satisfying inequality |sin x| lt 1/2 is

    Text Solution

    |

  14. The set of solution satisfying inequality 2cos^2theta+sinthetale2, whe...

    Text Solution

    |

  15. The set solution satisfying inequality sintheta +sqrt3costhetage1, -pi...

    Text Solution

    |

  16. A triangle ABC is such that sin(2A+B)= 1/2. If A,B,C are in A.P. then ...

    Text Solution

    |

  17. The number of all the possible triplets (a1,a2,a3) such that a1+a2cos(...

    Text Solution

    |

  18. The value of 'a' for which the equation 4cosec^(2)pi(a+x)+a^(2)-4a=0 h...

    Text Solution

    |

  19. If the arithmetic mean of the roots of the equation 4cos^(3)x-4cos^(2)...

    Text Solution

    |

  20. The solution of |cosx|= cosx-2sinx is

    Text Solution

    |