Home
Class 11
MATHS
If 630^@ lt A lt 720^(@) , |tan A|=12//5...

If `630^@ lt A lt 720^(@) , |tan A|=12//5, " then " tan A//2=`

A

`3/2`

B

`-3/2`

C

`2/3`

D

`-2/3`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise PRACTICE EXERCISE|68 Videos

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise EXERCISE-1 |35 Videos

  • MULTIPLE & SUBMULTIPLE

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - II) (LEVEL - II) (Linked Comprehension Type Questions)|5 Videos

  • MULTIPLE PRODUCT OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|62 Videos

Similar Questions

Explore conceptually related problems

I : If 180^(@) lt theta lt 270^@ , sin theta = -3//5 " then " cos theta //2 -=1//10 . II : If 630^(@) lt theta lt 720^(@) , |tan theta | =12//5 " then " tan theta//2= 2//3

If 180^(@) lt theta lt 270^(@), sin theta =-4//5 , " then " tan theta //2=

If 180^(@) lt theta lt 270^(@) , tan theta = 5//12 , " then " cos 3 theta =

If cos A =-3//5 , sin B=7//25 and 90^(@) lt A lt 180^@,0^(@) lt B lt 90^(@) , "then " tan (A+B)=

If 270^(@) lt A lt 360^(@), 90^(@) lt B lt 180^(@) , cos A =5//13 , tan B=-15//8 " then " cos (A+B)=

If 0 lt x lt pi , and cos x+ sin x =1//2 , then tan x=

If 180^(@) lt theta lt 270^(@) and sin theta = -5//13 then 5 cot^(2) theta + 12 tan theta + 13 "cosec" theta =

If 90^(@) lt A lt 180^(@) , 180^(@) lt B lt 270^(@) and cos A=-(sqrt(3))/(2) , sin B=-(3)/(5) "then" ( 2 tan B + sqrt(3) tan A)/( cot^(2) A + cos B) =

If 270^(@) lt theta lt 360^(@) and cos theta = (5)/(13) " then " (13 sin theta + 5 tan theta )/( 12 cot theta - 5 sec theta )=

If A+B+C=720^(@) " then " tan A + tan B + tan C=

AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-EXERCISE-II
  1. Prove that cos. (pi)/(11). cos . (2 pi)/(11). cos . (3 pi)/(11) cos. (...

    Text Solution

    |

  2. "Cos"(2pi)/15."Cos"(4pi)/15."Cos"(8pi)/15."Cos"(14pi)/15=

    Text Solution

    |

  3. If 630^@ lt A lt 720^(@) , |tan A|=12//5, " then " tan A//2=

    Text Solution

    |

  4. Prove that (1+cos""pi/10)(1+cos""(3pi)/10)(1+cos""(7pi)/10)(1+cos""(9p...

    Text Solution

    |

  5. "cos"^(2)pi/10+"cos"^(2)(2pi)/5+"cos"^(2)(3pi)/5+"cos"^(2)(9pi)/10=

    Text Solution

    |

  6. Show that cos^4""pi/8+cos^4""(3pi)/8+cos^4""(5pi)/8+cos^4""(7pi)/8=3/2

    Text Solution

    |

  7. tan9^(@)-tan27^(@)-tan63^(@)+tan81^(@)=

    Text Solution

    |

  8. x/(costheta)=y/(cos(theta-(2pi)/3))=z/(cos(theta+(2pi)/3)) then x+y+z=

    Text Solution

    |

  9. The minimum value of cos^(3) x+ cos^(3) (120^(@) + x) + cos^(3) (120^...

    Text Solution

    |

  10. If x= tan15^(@) , y="cosec"75^@ and z= 4 sin18^(@) , then

    Text Solution

    |

  11. cos^(2)(alpha+beta)+cos^(2)(alpha-beta)-cos2alpha cos2beta=

    Text Solution

    |

  12. If cos^(3) theta + cos^(3)((2pi)/(3) + theta) + cos^(3)((4pi)/(3) + th...

    Text Solution

    |

  13. If tan(theta/2)=cosec theta-sintheta then the numerical balue of "cos"...

    Text Solution

    |

  14. If cos theta = (cos alpha - cos beta)/(1-cos alpha cos beta), then one...

    Text Solution

    |

  15. If x+y+z=xyz , " then " sum(3x-x^(3))/(1-3x^(2))=

    Text Solution

    |

  16. tan ""7(1^@)/(2)=

    Text Solution

    |

  17. If sin18^(@)=(sqrt5-1)/4 then Sin81^(@)=

    Text Solution

    |

  18. If sqrt(1+sinA)-sqrt(1-sinA)=2"sin"A/2"then"A/2 in

    Text Solution

    |

  19. If (3pi)/4ltA/2lt(5pi)/4 then -sqrt(1+sinA)+sqrt(1-sinA)=

    Text Solution

    |

  20. I : If (cos alpha )/(a)=(sin alpha )/(b) then a cos 2 alpha + b cos 2...

    Text Solution

    |