Home
Class 11
MATHS
sin 47^@ + sin 61^@- sin 11^@- sin 25^@ ...

`sin 47^@ + sin 61^@- sin 11^@- sin 25^@` =

A

`sin 7^@`

B

`cos 7^@`

C

`sin 36^@`

D

`cos 36^@` .

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TRIGNOMETRY

    MODERN PUBLICATION|Exercise EXERCISE|730 Videos

  • STRAIGHT LINES

    MODERN PUBLICATION|Exercise EXERCISE|304 Videos

Similar Questions

Explore conceptually related problems

Prove that sin47^(@)+sin61^(@)-sin11^(@)-sin25^(@)=cos7^(@) .

Prove the following : sin 10^@ + sin 20^@ + sin 40^@ + sin 50^@ = sin 70^@+ sin 80^@ .

Prove that : sin 36^@ sin 72^@ sin 108^@ sin 144^@ =5/16 .

Prove that : sin 6^@ sin 42^@ sin 66^@ sin 78^@ =1/16 .

Prove the following : sin 10^@ sin 30^@ sin 50^@ sin 70^@ = 1/16 .

Prove the following : sin 20^@ sin 40^@ sin 60^@ sin 80^@ = 3/16 .

Let P=sin 25^(@) sin 35^(@)sin 60^(@) sin 85^(@) and Q=sin20^(@)sin40^(@)sin 75^(@) sin 80^(@) . Which of the following relation (s) is (are) correct ?

The sum 1/(sin4 5^(@)sin4 6^(@))+1/(sin4 7^(@)sin4 8^(@)) +1/(sin 49^@ sin 50^@)+...+1/(sin 133^@ sin 134^@) is equal to

Prove the following : sin 10^@ sin 50^@ sin 70^@ = 1/8 .

Prove that : sin 10^@ sin 50^@ sin 60^@sin 70^@= sqrt3/16 .

MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. In Delta ABC, if sin ^(2) A+sin ^(2) B =sin ^(3)C, then the triangle i...

    Text Solution

    |

  2. If tan theta=1/ sqrt7, then ((cosec^2 theta-sec^2 theta)/(cosec^2 thet...

    Text Solution

    |

  3. sin 47^@ + sin 61^@- sin 11^@- sin 25^@ =

    Text Solution

    |

  4. The most general of theta satisfying tantheta+tan((3pi)/(4)+theta)=2 a...

    Text Solution

    |

  5. In triangle ABC, s= (a+b+c)/2, then (b cos^2 frac (C)(2)+ c cos^2 frac...

    Text Solution

    |

  6. If sin^4 x - cos^4 x = p, then which one of the following is correct ?

    Text Solution

    |

  7. If cos theta < sin theta and theta lies in the first quadrant, then wh...

    Text Solution

    |

  8. The angle of elevation from a point on the bank of a river of the top ...

    Text Solution

    |

  9. If sin^2 x + sin^2 y = 1, then what is the value of cot (x + y) ?

    Text Solution

    |

  10. What is the value of cos 10^@ + cos 110^@+ cos 130^@ ?

    Text Solution

    |

  11. What is the value of tan (-1575^@) ?

    Text Solution

    |

  12. For which acute angle theta cosec^2 theta= 3 sqrt3 cot theta-5?

    Text Solution

    |

  13. If tan^2 theta=2 tan^2 phi+1, then which of the following is correct ?

    Text Solution

    |

  14. The value of sin 10^(@) sin 50^(@) sin 70^(@) is equal to

    Text Solution

    |

  15. The sines of two angles of a triangle are equal to 5/13 and 99/101 . W...

    Text Solution

    |

  16. After subtending an angle of 1000^@ from its initial position, the rev...

    Text Solution

    |

  17. One radian is approximately equal to which one of the following :

    Text Solution

    |

  18. If cot (x+y)= 1/sqrt3, cot (x-y)= sqrt3, then what are the smallest po...

    Text Solution

    |

  19. In sinA= 1/sqrt5, cosB= 3/sqrt10, A, B being positive acute angles, th...

    Text Solution

    |

  20. x = sin theta cos theta, and y = sin theta +cos theta are satisfied by...

    Text Solution

    |