Home
Class 12
MATHS
If A =580^(@), then which one of the fol...

If `A =580^(@),` then which one of the following is correct ?

A

`sin ""A/2 =1/2 (sqrt(1+sin A)+ sqrt(1+ sin A))`

B

`sin ""A/2 =-1/2 (sqrt( 1+sin A)- sqrt(1-sin A))`

C

`sin ""A/2 =1/2 (sqrt(1-sin A)-sqrt(1-sin A))`

D

`sin ""A/2 =1/2 (sqrt(1+sin A)- sqrt(1-sin A))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 4|91 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 10|1 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 9|66 Videos

  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 C Very short answer type question|18 Videos

Similar Questions

Explore conceptually related problems

Which one of the followings is correct ?

Which one of the following are correct?

Which of the following is correct one:

Which one of the following is a correct match

which one of the following statemets is correct?

Which one of the following matches is correct?

Which one of the following matches is correct?

which one of the following statements is correct?

Which one of the following statement is correct ?

Which one of the following statements is correct ?

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 2
  1. If cos alpha + cos beta =cos ""(3pi)/(7)and sin alpha + sin beta = sin...

    Text Solution

    |

  2. The coefficient of cos ^(3) theta in the expansion of cos 7theta in po...

    Text Solution

    |

  3. If A =580^(@), then which one of the following is correct ?

    Text Solution

    |

  4. The value of (sin 1950^(@)-cos 1950^(@)) is equal to-

    Text Solution

    |

  5. Two sides of a triangle are given by the roots of the equation x^(2) ...

    Text Solution

    |

  6. The value of [sqrt3 cot 20^(@) -4 cos 20^(@)] is equal to-

    Text Solution

    |

  7. If x= cos ^(2) theta + sin ^(4) theta, then for all real values of the...

    Text Solution

    |

  8. In a triangle ABC, (sin A+ sin B+ sin C) (sin A+sin B-sinC)= 3 sin A s...

    Text Solution

    |

  9. The value of sin ""pi/14 sin ""(3pi)/(14)sin ""(5pi)/14 sin ""(7pi)/(...

    Text Solution

    |

  10. If the radius of the circumcircle of the isosceles triangle ABC is equ...

    Text Solution

    |

  11. If 0 lt theta lt (pi)/(2) and sin ""(theta)/(2)=sqrt((x-1)/(2x)), then...

    Text Solution

    |

  12. If sin A =sinB and cos A=cos B, then the value of A in terms of B is-

    Text Solution

    |

  13. If in a triangle ABC, A=45^(@) , B=75^(@), then the value of (a+sqrt2c...

    Text Solution

    |

  14. If sin (pi cos theta)=cos (pi sin theta), then the vlaue of cos (thet...

    Text Solution

    |

  15. The general solution of the equation 4 sin 4 theta -1 =sqrt5 is-

    Text Solution

    |

  16. If tan A + cot A=4, then the value of (tan ^(4) A+cot^(4) A) is

    Text Solution

    |

  17. The general solution of the equation sin theta + cos theta =1 is-

    Text Solution

    |

  18. For theta gt (pi)/(3), the value of f (theta) =(sec ^(2) theta + cos ^...

    Text Solution

    |

  19. In which of the following interval, the equation cos ^(2) x+ sin x+1=0...

    Text Solution

    |

  20. In a triangle ABC, medians AD and BE are deawn. IF AD= 4, angle D AB=(...

    Text Solution

    |