Home
Class 12
MATHS
If in a triangle ABC, a=5, b=4 and A=pi/...

If in a triangle ABC, `a=5, b=4 and A=pi/2 +B,` then the value of `tan ""C/2` is-

A

`1/9`

B

`2/9`

C

`(1)/(20)`

D

`(1)/(40)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 10|1 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 11|1 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 2|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

In a triangle ABC, a=2 cm, b=3 cm and c=4 cm, then the value of cos A is-

let A, B, C are angles of a triangle and tan ""A/2=1/3,tan ""B/2=2/3, then the value of tan ""C/2 is-

In a triangle ABC, if 3a = b+c, then the value of cot ""(B)/(2) cot ""C/2 is-

In a Delta ABC, if b=20, c=21and sin A =3/5, then the value of a is

In triangle ABC if a=3 cm b=4cm and c=5 am then value of cosB is

In triangle ABC, if b^(2) =c^(2) +a^(2) then the value of (tan A+ tan C) is -

In a triangle ABC, if the sides are a=3, b=5, c=4, thenb the value of (sin ""B/2+ cos ""B/2) is equal to-

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

If in a triangle ABC, B = (2pi)/3, then cosA +cosC lies in

In triangle ABC, If cos B= a/(2c) , then the triangle is-

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 4
  1. If the sides of the triangle ABC are p,q and sqrt(p^(2)+ pq+q^(2)), th...

    Text Solution

    |

  2. If in a triangle ABC, a=5, b=4 and A=pi/2 +B, then the value of tan ""...

    Text Solution

    |

  3. The value of (cos 9^(@) +sin 9^(@))/(cos 9^(@) -sin 9^(@)) is equal to...

    Text Solution

    |

  4. In a triangle (1)/(a+c)+ (1)/(b+c)=(3)/(a+b+c) , then the value of the...

    Text Solution

    |

  5. The circumradius of the triangle whose side are 13, 12 and 5 is -

    Text Solution

    |

  6. If 0lt x lt (pi)/(2) and 1+ sin x+ sin ^(2) +sin ^(3) x+…oo= 4+2 sqrt3...

    Text Solution

    |

  7. Consider the following: (1) If cot theta =x, then x+ 1+x = sec thet...

    Text Solution

    |

  8. In any triangle ABC, the valur of a(cos ^(2) B+ cos ^(2)C)+ cos A (b ...

    Text Solution

    |

  9. If A+C=2b, then the value of (cos C - cos A)/(sin A-sin C) is-

    Text Solution

    |

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

    Text Solution

    |

  11. If cos theta ne 1/2, then the solution of the equation cos 2 theta =(...

    Text Solution

    |

  12. The value of sin 6^(@) sin 66^(@) is equal to-

    Text Solution

    |

  13. If y= (1+ tan A) (1- tan B) where A-B =pi/4, then the value of (y+1) ^...

    Text Solution

    |

  14. ABC is a right angle isosceles triangle with angleB=90^(@). If D is a ...

    Text Solution

    |

  15. If tan x =a/b, then the value of (a^(2) + b^(2)) sin 2x is-

    Text Solution

    |

  16. If sin A +sin B =2, then the value of cos (A+B) is-

    Text Solution

    |

  17. If sin theta""25/25 and 0^(@) lt theta 90^(@), then the value of sin "...

    Text Solution

    |

  18. If x sin ^(3) theta + y cos ^(3) theta = sin theta cos theta and x sin...

    Text Solution

    |

  19. The equation sin x + sin y + sin z =-3 for 0 le x le 2pi,0 lt y le 2p...

    Text Solution

    |

  20. In a Delta ABC, if b=20, c=21and sin A =3/5, then the value of a is

    Text Solution

    |