Home
Class 14
MATHS
1/4[sqrt(3)cos2 3^(@)-sin2 3^(@)]=...

`1/4[sqrt(3)cos2 3^(@)-sin2 3^(@)]=`

A

`cos53^(@)`

B

`cos7^(@)`

C

`(1)/(2)cos7^(@)`

D

`(1)/(2)cos53^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST - 3

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise Multiple Choice Question |98 Videos
  • NUMBER SYSTEM

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS |225 Videos

Similar Questions

Explore conceptually related problems

((sqrt(3)+2cos A)/(1-2sin A))^(-3)+((1+2sin A)/(sqrt(3)-2cos A))^(-3)=

((sqrt(3)+2cos A)/(1-2sin A))^(-3)+((1+2sin A)/(sqrt(3)-2cos A))^(-3)=

If f(x)=cos^(-1)((1)/(sqrt(13)))(2cos x-3sin x)+sin^(-1)((1)/(sqrt(13)))(2cos x+3sin x)wdot rt sqrt(1+x^(2)) then find (df(x))/(dx) at x=(3)/(4)

The derivative of the function f(x)=cos^(-1)((1)/(sqrt(13))(2cos x-3sin x))+sin^(-1)((1)/(sqrt(13))(2cos x+3sin x)), with respect to sqrt(1+x^(2)) at x=(3)/(4) is

Find the value of ((cos1^(@)+sin1^(@))(cos2^(@)+sin2^(@))(cos3^(@)+sin3^(@))...(cos 45^@sin45^@))/( cos1^(@)cos2^(@)cos3^(@)...cos45^(@))

Evaluate each of the following: (cot^(-1)1)/(sqrt(3))-cos ec^(-1)(-2)+sec^(-1)((2)/(sqrt(3))) (ii) cot^(-1){2cos((sin^(-1)(sqrt(3)))/(2))}

Find the value of : tan^(-1) ((-1)/(sqrt(3)))+cos^(-1)((-sqrt(3))/2)+sin^(-1)(1/2)

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))

If z_(1)=sqrt(2)((cos pi)/(4)+i sin((pi)/(4))) and z_(2)=sqrt(3)((cos pi)/(3)+i sin((pi)/(3))) then |z_(1)z_(2)|=

ADVANCED MATHS BY ABHINAY MATHS ENGLISH-MOCK TEST II-MCQ
  1. If 5costheta+3cos(theta+(pi)/(3))+"sin"^(2)(pi)/(3)-2=A then value of...

    Text Solution

    |

  2. If A lies in the third quardrant and 3 tan A -4 =0 , then 5 sin 2A+3 s...

    Text Solution

    |

  3. 1/4[sqrt(3)cos2 3^(@)-sin2 3^(@)]=

    Text Solution

    |

  4. In a triangle aBC , angleB=2angleC.AD and BE bisectors of angleBACanda...

    Text Solution

    |

  5. The ratio of the length of the diagonal of rhombus is 2 : 5 . Then, th...

    Text Solution

    |

  6. If 3x + 2y = 11 & kx + 4y = 22 are coincide lines find value of k.

    Text Solution

    |

  7. During the super cyclone in Orissa when wind blew a coconut tree touch...

    Text Solution

    |

  8. A man buys a certain number of oranges at 20 for 60 and an equal numbe...

    Text Solution

    |

  9. A man buys two chairs for a total cost of Rs 900. By selling one for (...

    Text Solution

    |

  10. The bisector of interior angleA of triangleABC meets BC in D, and the ...

    Text Solution

    |

  11. The base radius and height of a cone is 5cm and 25 cm respectively. If...

    Text Solution

    |

  12. Three girls Sangeeta, Namrata and Mandip are playing a game by standin...

    Text Solution

    |

  13. Two circles with centres A and B of radii 3 cm and 4 cm respectively i...

    Text Solution

    |

  14. In the class of 100 students, the number of students passed in English...

    Text Solution

    |

  15. If the work done by (x – 1) men in (x + 1) days and the work done by (...

    Text Solution

    |

  16. In a race of 600 m, A can beat B by 60 m and in a race of 500 m, B can...

    Text Solution

    |

  17. In an examination paper of five questions, 5% of the candidates answer...

    Text Solution

    |

  18. A and B started a business with Rs. 20000 and Rs. 35000 respectively. ...

    Text Solution

    |

  19. In a tank four taps of equal efficiency are fitted on equal intervals....

    Text Solution

    |

  20. Two pipe M and N can fill a tank in 8(1)/(3) min and 12(1)/(2) min r...

    Text Solution

    |