Home
Class 12
MATHS
If sin 3 alpha =4 sin alpha sin (x+alph...

If ` sin 3 alpha =4 sin alpha sin (x+alpha ) sin(x-alpha ) `, then

A

`n pi +-(pi)//(6)`

B

`n pi +-(pi)//(3)`

C

`npi +- (pi)/4`

D

`n pi +- (pi)//2`

Text Solution

Verified by Experts

The correct Answer is:
B
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

sin3 alpha=4sin alpha sin(x+alpha)sin(x-alpha)

Solve: sin3 alpha=4sin alpha sin(x+alpha)sin(x-alpha), where alpha!=n pi,n in Z

If sin(x +3alpha)=3 sin (alpha-x) , then

The set of values of x satisfying the equation sin3 alpha=4sin alpha sin(x+alpha)sin(x-alpha) is n pi+-(pi)/(4),AA n in Zn pi+-(pi)/(3),AA n in Zn pi+-(pi)/(9),AA n in Zn pi+-(pi)/(12),AA n in Z

If sin(x+3 alpha)=3sin (alpha-x) then

The number of solutions of the equation sin3 alpha=4sin alpha*sin(x+alpha)*sin(x-alpha) where 0

Simplify: sin(x+alpha)sin(x-alpha)

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - B : MASTERING THE BEST
  1. "cot" theta = "sin" 2 theta, theta ne n pi, n in Z, "if" theta equals

    Text Solution

    |

  2. If : cot theta + cot((pi)/4 + theta) = 2, then : theta =

    Text Solution

    |

  3. If sin 3 alpha =4 sin alpha sin (x+alpha ) sin(x-alpha ) , then

    Text Solution

    |

  4. The number of values of x in the interval [0, 5pi] satisfying the equa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |