Home
Class 14
MATHS
If sin A = n sin B then (n-1)/(n+1) tan ...

If `sin A = n sin B` then `(n-1)/(n+1)` tan `(A+B)/(2)` is equal to

A

`sin((A-B)/(2))`

B

`tan((A-B)/(2))`

C

`cot((A-B)/(2))`

D

`tan((A+B)/(2))`

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise EXERCISES (Multiple Choice Questions)|350 Videos

  • TIME, SPEED & DISTNACE

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise QUESTIONS|108 Videos

Similar Questions

Explore conceptually related problems

If sin A=nsinB, then (n-1)/(n+1)tan((A+B)/(2)) is equal to

If sin A=a cos B and cos A=b sin B then (a^(2)-1)tan^(2)A+(1-b^(2))tan^(2)B is equal to

If the sum of the series tan^(-1)3+tan^(-1)(9/2)+tan^(-1)(33/4)+...... to n terms = ((2n+1)pi)/(A)+B tan^(-1)(2^(n)) then (A+B) is equal to

If tan A= (1- cos B)/(sin B), then tan 2A is equal to

tan A=(n)/(n+1),tan B=(1)/(2n+1)rArr A+B=

a_ (n) = int_ (0) ^ ((pi) / (2)) (1-sin t) ^ (n) sin2tdt ten lim_ (n rarr oo) sum_ (n = 1) ^ (n) (a_ ( n)) / (n) is equal to

If tan theta + sin theta = m , tan theta - sin theta = n then m^(2) -n^(2) is equal

int ( n sin^(n-1))/(secx (sin x)^(n)) dx equals :

ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)
  1. The greatest value of cos^(2)((pi)/(3)-x)-cos^(2)((pi)/(3)+x) is

    Text Solution

    |

  2. (sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-sinx))=? (x is in IV ...

    Text Solution

    |

  3. If sin A = n sin B then (n-1)/(n+1) tan (A+B)/(2) is equal to

    Text Solution

    |

  4. (sin^(2)A-sin^(2)B)/(sinAcosA-sinBcosB)=?

    Text Solution

    |

  5. If cosA=mcosB, then

    Text Solution

    |

  6. If xcostheta=ycos(theta+(2pi)/(3))=zcos(theta+(4pi)/(3)), then (1)/(x)...

    Text Solution

    |

  7. 2sinAcos^(3)A-2sin^(3)AcosA=?

    Text Solution

    |

  8. <b>(i) tanA+tan(180^(@)+A)+cot(90^(@)+A)+cot(360^(@)-A)=?</b> (a) 0 ...

    Text Solution

    |

  9. (sin3theta+sin5theta+sin7theta+sin9theta)/(cos3theta+cos5theta+cos7the...

    Text Solution

    |

  10. If ABCD is a cyclic quadrilateral then cos A + cos B + cos C + cos D ...

    Text Solution

    |

  11. If (2sinalpha)/(1+cosalpha +sinalpha)=y , then prove that (1-cosalph...

    Text Solution

    |

  12. 1-(sin^(2)y)/(1+cosy)+(1+cosy)/(siny)-(siny)/(1-cosy)=?

    Text Solution

    |

  13. (sin70^(@)+cos40^(@))/(cos70^(@)+sin40^(@))=?

    Text Solution

    |

  14. If x=secphi-tanphi&y=cosecphi+cotphi, then

    Text Solution

    |

  15. If (sin^(4)alpha)/a +(cos^(4)alpha)/b = 1/(a+b), show that sin^(8)alph...

    Text Solution

    |

  16. If 2ycostheta=x sintheta and 2xsectheta-ycosectheta=3, then x^(2)+4y^(...

    Text Solution

    |

  17. If tantheta-cottheta=a and costheta+sintheta=b, then (b^(2)-1)^(2)(a^(...

    Text Solution

    |

  18. If tantheta=(sinalpha-cosalpha)/(sinalpha+cosalpha), then sinalpha+cos...

    Text Solution

    |

  19. If sintheta+sinphi=aandcostheta+cosphi=b, then tan((theta-phi)/(2))=?

    Text Solution

    |

  20. cos^(2)alpha+cos^(2)(alpha+120^(@))+cos^(2)(alpha-120^(@))=?

    Text Solution

    |