Home
Class 12
MATHS
If cos theta =tan theta, then which one...

If `cos theta =tan theta, ` then which one of the following is correct ?

A

`cos theta =2 cos 18^(@)`

B

`sin theta = sin 54^(@)`

C

`cos theta =2 sin 18^(@)`

D

`sin theta =2 cos 18^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 6|90 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 9|66 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 7|90 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

If x sin ^(3) theta + y cos ^(3) theta = sin theta cos theta and x sin theta = y cos theta, then which one of the following is correct ?

If x=sin ^(2) theta + cosec ^(2) theta, then which one of the following is correct ?

If A=sin^(4) theta+cos^(4) theta , then which one of the followings is correct?

If A(theta)=[(sin theta, i cos theta),(i cos theta, sin theta)] , then which of the following is not true ?

If cos theta ge (1)/(2) in the first quardrant, which one of the followings is correct ?

If sin theta + cos theta = m and sin ^(3) theta + cos ^(3) theta =n, state which of the following is true-

If sec theta+tan theta=p , then find the value of cos theta .

If cos^2theta-sin^2 theta = 1/2 . Then tan theta =

If sin 44theta = cos theta , then the value of tan 15 theta is-

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 8
  1. Minimum value of (9 cos ^(2) theta + 16 sin ^(2) theta) is-

    Text Solution

    |

  2. If (sin (x+y))/(sin (x-y)) =(a+b)/(a-b), then the value of (tan x)/(ta...

    Text Solution

    |

  3. If cos theta =tan theta, then which one of the following is correct ?

    Text Solution

    |

  4. If tan (pi cos theta) = cot (pi sin theta), then the valus of cos (th...

    Text Solution

    |

  5. If (1+ tan theta) (1+ tan phi)=2, then the value of (theta+ phi) is

    Text Solution

    |

  6. The number of solutions of 2 cos ^(2) (x/2) sin ^(2)x =x^(2)+(1)/(x^(2...

    Text Solution

    |

  7. The most general values of theta satisfying the two equations cos thet...

    Text Solution

    |

  8. In any triangle ABC, if a,b,c are in A.P. then tan ""A/2, tan ""B/2, t...

    Text Solution

    |

  9. In any triangle ABC, the value of (b^(2)sin 2C + c^(2) sin 2B) is-

    Text Solution

    |

  10. If a sin theta =b sin (120^(@) +theta) =c sin (240^(@) +theta), then ...

    Text Solution

    |

  11. The value of theta ( 0 lt theta lt (pi)/(2)) for which cos theta sin (...

    Text Solution

    |

  12. The maximum value of [sin (x+(pi)/(6))+cos (x+(pi)/(6))] in the interv...

    Text Solution

    |

  13. The value of cos ""pi/7 cos ""(2pi)/(7) cos ""(3pi)/(7) is-

    Text Solution

    |

  14. In a triangle ABC, a=4 , b=3, A=60^(@), then c is the root of the equa...

    Text Solution

    |

  15. The valud of sin 12^(@) sin 48^(@) sin 54^(@) is equal to-

    Text Solution

    |

  16. In a right angled triangle, the hypotense is four times as long as the...

    Text Solution

    |

  17. If n is an integer, which of the following is correct ?

    Text Solution

    |

  18. If 1+ sin ^(2) A=3 sin A cos A , then possible values of tan A are-

    Text Solution

    |

  19. The soluition of the equation sin theta -2= cos 2 theta in the interv...

    Text Solution

    |

  20. The value od the expression sqrt(2+sqrt(2+sqrt(2+2 cos 8 theta )))is-

    Text Solution

    |