Home
Class 11
MATHS
If sinx siny = 3 (cosy - cos x) then (si...

If sinx siny = 3 (cosy - cos x) then `(sin3x)/(sin3y)` =

A

0

B

1

C

-1

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMPOUND ANGLES

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I)|43 Videos

  • COMPOUND ANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - I) LEVEL - I|38 Videos

  • COMPOUND ANGLES

    AAKASH SERIES|Exercise EXERCISE - II|40 Videos

  • CHANGE OF AXES

    AAKASH SERIES|Exercise Practice Exercise|29 Videos

  • CONTINUITY

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|34 Videos

Similar Questions

Explore conceptually related problems

(sin x + sin 3x )/( cos x + cos 3x )= tan 2x

If sinx+siny=p,cosx+cosy=q then sec(x+y)=

If sin x - 3 sin 2x + sin 3x = cos x - 3 cos 2x + cos 3x then x =

(sin 5x + sin 3x )/( cos 5x + cos 3x ) = tan 4x

The period of the function f(x)=( sin 8x cos x-sin 6x cos 3x )/(cos 2x cos x- sin 3x sin 4x ) is

If sin^(3) x + sin x .cos x + cos^(3) x = 1 then x =

If sin x+siny=1/4,cos x+cosy=1/3 then tan((x+y)/2)=

sin 3x + sin 2x - sin = 4sin x cos "" x/2 cos "" (3x)/(2)

AAKASH SERIES-COMPOUND ANGLES-PRACTICE EXERCISE
  1. cos^(2) (A-B)+cos^(2)B-2cos(A-B) cos A cos B =

    Text Solution

    |

  2. If alpha,beta are acute angles, sin alpha = (4)/(5), tan beta = (5)/(1...

    Text Solution

    |

  3. If A,B are acute angle, tan A=5/12 , cos B=3/5 , then cos (A+B)=

    Text Solution

    |

  4. If A, B are acute angles, sin A =4/5 , tan B=5/12 , then sin (A+B)=

    Text Solution

    |

  5. If Tan A = (17)/(18), TanB = (1)/(35) then Cos (A+B) =

    Text Solution

    |

  6. If Tan = (1)/(2), Tan B = (1)/(3) then Tan (A+B) =

    Text Solution

    |

  7. If cos A =-3//5 , sin B=7//25 and 90^(@) lt A lt 180^@,0^(@) lt B lt ...

    Text Solution

    |

  8. If B,A+B are acute angle , sin(A+B)=12/13, sin B=5/13 then sin A =

    Text Solution

    |

  9. If tan (A-B)=7//24 , tan A=4//3 " where " A,B are acute , then A+B=

    Text Solution

    |

  10. If Tan A = (4)/(3), Tan B = (1)/(7) then A - B =

    Text Solution

    |

  11. If 0 lt theta lt pi//2 and 2 sin theta = sqrt(3) cos 10^(@) + sin 10^(...

    Text Solution

    |

  12. If A+B+C=180^(@) " then " sum(cot A + cot B)/(tan A + tan B)=

    Text Solution

    |

  13. If Tan A = 1, TanB = 2, TanC = 3 then A + B + C =

    Text Solution

    |

  14. If A+B+C=720^(@) " then " tan A + tan B + tan C=

    Text Solution

    |

  15. In Delta ABC, sum""(cos (B-C))/(sinB sin C )=

    Text Solution

    |

  16. In DeltaABC, (CotB + CotC) (CotC + CotA) (CotA + CotB) =

    Text Solution

    |

  17. CotA + CotB + CotC + (Cos(A+B+C))/(SinASinBSinC)=

    Text Solution

    |

  18. If tan alpha , tan beta are the roots of the equation x^(2) + px+q=...

    Text Solution

    |

  19. If sinx siny = 3 (cosy - cos x) then (sin3x)/(sin3y) =

    Text Solution

    |

  20. Let fk(x)=(1)/(k)(sin^k x+ cos^k x) " where " x in R and k ge 1 . Then...

    Text Solution

    |