Home
Class 11
MATHS
16 * cos ""(pi)/(12) * cos"" (4pi)/(12) ...

`16 * cos ""(pi)/(12) * cos"" (4pi)/(12) * cos"" (5pi)/(12)=` A)`sqrt1`B)`sqrt2`C)`sqrt3`D)`sqrt4`

A

`sqrt1`

B

`sqrt2`

C

`sqrt3`

D

`sqrt4`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MCQs|175 Videos

  • STRAIGHT LINE

    MARVEL PUBLICATION|Exercise MISCELLANEOUS MCQS|160 Videos

  • TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE

    MARVEL PUBLICATION|Exercise MCQs|101 Videos

Similar Questions

Explore conceptually related problems

sin ""(pi)/(4) cos ""(pi)/(12) - cos ""(pi)/(4) sin ""(pi)/(12) is equal to

(cos pi) / (12) - (sin pi) / (12) = (1) / (sqrt (2))

(sin((5pi)/12)-cos((5pi)/12))/(cos((5pi)/12)+sin((5pi)/12))=

Prove that (i) "sin " (7pi)/(12) " cos " (pi)/(2) - "cos " *(7pi)/(12) " sin " (pi)/(4) = (sqrt(3))/(2) (ii) " sin " (pi)/(4) " cos " (pi)/(2) + "cos"(pi)/(4) " sin " (pi)/(12) = (sqrt(3))/(2) (iii) " cos " (2pi)/(3) " cos " (pi)/(4) - " sin " (2pi)/(3) " sin " (pi)/(4) =(-(sqrt(3) +1))/(2sqrt(2))

Prove that :cos((pi)/(12))-sin((pi)/(12))=(1)/(sqrt(2))

cot ((pi) / (12)) + cot ((3 pi) / (12)) + cos ((9 pi) / (12)) + cos ((11 pi) / (12))

Prove that (i) " 2sin " (5pi)/(12) " sin " (pi)/(12)=(1)/(2) (ii) " 2 cos " (5pi)/(12) " cos " .(pi)/(12)=(1)/(2) (iii) " 2 sin ".(5pi)/(12) " cos " (pi)/(2) = ((2+sqrt(3))/(2))

Prove that 2sin((5 pi)/(12))cos((pi)/(12))=(2+sqrt(3))/(2)

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MCQs
  1. (cos21^(@) -sin21^(@))/(cos21^(@) + sin21^(@)) A)tan21^(@)B)cot66^(@)C...

    Text Solution

    |

  2. sin 7 theta * sin theta+sin11theta * sin 3theta= A) sin 4 theta * sin ...

    Text Solution

    |

  3. 16 * cos ""(pi)/(12) * cos"" (4pi)/(12) * cos"" (5pi)/(12)= A)sqrt1B)s...

    Text Solution

    |

  4. If : A+B+C=pi, "then" : sin 2A + sin 2 B - sin 2 C= A)4 sin A * cos B ...

    Text Solution

    |

  5. If A+B+C=pi then sin2A+sin2B+sin2C=

    Text Solution

    |

  6. If : A+B+C=pi, "then" : 1-cos^(2) A-cos^(2)B-cos^(2)C= A)2 cos A * co...

    Text Solution

    |

  7. If : A+B+C=pi, "then"" "sin ^(2) A +sin^(2)B - sin ^(2)C= A)2 cos A * ...

    Text Solution

    |

  8. If : A+B+C=pi "then" : 1 - sin^(2)""(A)/(2) - sin^(2)""(B)/(2)+ sin^(...

    Text Solution

    |

  9. (csc theta - sin theta)(sec theta - cos theta)(tan theta+ cot theta)= ...

    Text Solution

    |

  10. sin 2A + sin 2B + sin 2 (A-B)= A)4 sin A * sin B * sin (A-B) B)4 sin A...

    Text Solution

    |

  11. 4 cos A * cos B * sin (A-B)

    Text Solution

    |

  12. sin^(2)A*tan^(2)A+cos^(2)A*cot^(2) A= A)1 + tan^(2)A + cot^(2) A B)tan...

    Text Solution

    |

  13. sqrt(tan^(4) A + cot ^(4) A+ 2)= A)1 + sec^(2) A + csc^(2)A B)sec^(...

    Text Solution

    |

  14. If : sec theta * tan theta (sectheta + tan theta) + (sec theta - tan t...

    Text Solution

    |

  15. If : 4(sin 3 theta * cos^(3) theta * 3 theta * sin^(3) theta)=m * sin ...

    Text Solution

    |

  16. If : tan((pi)/(4)+theta) - tan((pi)/(4) - theta) =m*tan (ntheta),"then...

    Text Solution

    |

  17. If Tan(picostheta)=cot(pisintheta) then the value of (s) of cos(theta-...

    Text Solution

    |

  18. If : sin A + cos A =1, "then" :sin A - cos A = A)pm 1 B)0 C)pm 2 D)pm...

    Text Solution

    |

  19. If : sin^(2) ((pi)/(4) + (theta)/(2)) - cos^(2) ((pi)/(4) + (theta)/(2...

    Text Solution

    |

  20. If : cot theta =(a)/(b), "then" : a *cos 2 theta +b * sin 2 theta= A)a...

    Text Solution

    |