Home
Class 11
MATHS
The value of cos(67(1^(@))/(2)) is …………....

The value of `cos(67(1^(@))/(2))` is ………….

A

`(sqrt(2+sqrt(2)))/(2)`

B

`(sqrt(2-sqrt(2)))/(2)`

C

`sqrt(2)-1`

D

`sqrt(2)+1`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK|33 Videos

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise SOLUTION OF NCERT EXEMPLAR PROBLEMS (SHORT ANSWER TYPE QUESTIONS)|19 Videos

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise PRACTICE WORK|122 Videos

  • STRAIGHT LINES

    KUMAR PRAKASHAN|Exercise Question of Module (Knowledge Test :)|18 Videos

Similar Questions

Explore conceptually related problems

Find the value of cos^(2)37(1^(@))/(2)-sin^(2)37(1^(@))/(2)

If tan^(2)theta=2tan^(2)phi+1 then the value of cos(2theta)+sin^(2)phi is ………..

The value of cos^(-1)(-1)-sin^(-1)(1) is: a. pi b. pi/2 c. (3pi)/2 d. -(3pi)/2

State weather each of the following statements is true or false : The value of cos^(2)23^(@)-sin^(2)67^(@) is positive.

The value of cos^(-1)("cos"(3pi)/2) is _____

The value of cos^(2)48^(@)-sin^(2)12^(@) is

The value of cos1^(@)cos2^(@)cos3^(@)…..cos179^(@) is

The principle value of cos^(-1)(-1/2) is _____

The value of cos^(-1)("cos"(14pi)/3) is _____

Find the value of sin^(2)52(1^(@))/(2)-cos^(2)7(1^(@))/(2)

KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -TEXTBOOK BASED MCQS
  1. If tanx=-(4)/(3),(pi)/(2)ltxltpi then sin((x)/(2))= …………

    Text Solution

    |

  2. One of the roots of 4x^(3)-3x=(1)/(2) is ………

    Text Solution

    |

  3. The value of cos(67(1^(@))/(2)) is ………….

    Text Solution

    |

  4. If one of the roots of 25cos^(2)theta+5costheta-12=0 is alpha then the...

    Text Solution

    |

  5. If cosalpha=-0.6andpiltalphalt(3pi)/(2) then tan((alpha)/(4)) = ………..

    Text Solution

    |

  6. If tanx=(b)/(a) then acos(2x)+bsin(2x) = ……….

    Text Solution

    |

  7. If cosA=(3)/(4) then 32sin((A)/(2))sin((5A)/(2)) = ……………

    Text Solution

    |

  8. sqrt(2+sqrt(2+2cos4theta))= …………

    Text Solution

    |

  9. If tan^(2)theta=2tan^(2)phi+1 then the value of cos(2theta)+sin^(2)phi...

    Text Solution

    |

  10. If tan""(alpha)/(2)andtan""(beta)/(2) are roots of the equation 8x^(2)...

    Text Solution

    |

  11. If tan(picostheta)=cot(pisintheta) then the value of cos(theta-(pi)/(4...

    Text Solution

    |

  12. The number of solutions of the equation 3sin^(2)x-7sinx+2=0 in [0,5pi]...

    Text Solution

    |

  13. The general solution of the equation sin^(50)x-cos^(50)x=1 is …………

    Text Solution

    |

  14. The solution set of cos2theta=cos^(2)theta-sin^(2)theta is …………

    Text Solution

    |

  15. The number of points of intersection of the graphs 2y=1 and y=sinx,-2p...

    Text Solution

    |

  16. The real solutions of the equation cos^(7)x+sin^(4)x=1 in (-pi,pi) are...

    Text Solution

    |

  17. The solution set of sintheta+costheta=2 is ………

    Text Solution

    |

  18. If 3sintheta=2costheta then the value of sin2theta is …………..

    Text Solution

    |

  19. tan^(6)40^(@)-33tan^(4)40^(@)+27tan^(2)40^(@) = …………

    Text Solution

    |

  20. theta(1),theta(2)in[0,2pi]andtheta(1) and theta(2) satisfy the equatio...

    Text Solution

    |