Home
Class 12
MATHS
In Delta ABC , if a=3 , b=4,c=6 then ("c...

In `Delta ABC` , if a=3 , b=4,c=6 then `("cot" (A)/(2)+"cot" (B)/(2)+ "cot" ( C)/(2))/("cot" A + "cot" B + "cot" C)=`

A

`(13)/(61)`

B

`(169)/(61)`

C

`(61)/(169)`

D

`(61)/(13)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ONLINE QUESTION PAPER

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematics|80 Videos

  • QUESTION PAPER 2015

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|78 Videos

Similar Questions

Explore conceptually related problems

r("cot"(A)/(2)"cot"(B)/(2)"cot"(C)/(2))=

r^(2) cot ""(A)/(2) cot ""(B)/(2) cot ""(C)/(2)

In Delta ABC, " if" s= 2b " then " cot "" (A)/(2) cot "" ( C)/(2) =

r ( cot "" ( B) /(2) + cot "" ( C) /(2)) =

In Delta ABC, cot ""(A)/(2) +cot""(B)/(2) + cot""(C)/(2)=

In Delta ABC , r ( r_1 cot "" ( A) /(2) + r_2 cot "" ( B) /( 2) + r_3 cot "" ( C) /(2) ) =

In Delta ABC, if s=2b then cot""A/2 cot ""C/2 =

In Delta ABC,if 3a=b+c , then cot""B/2.cot""C/2 =

TS EAMCET PREVIOUS YEAR PAPERS-ONLINE QUESTION PAPER 2018-MATHEMATICS
  1. If sec theta cos h y= cosec x and cosec theta sinh y = sec x, then sin...

    Text Solution

    |

  2. Consider the following statements. I. In Delta ABC , if c=6 and cos...

    Text Solution

    |

  3. In Delta ABC , if a=3 , b=4,c=6 then ("cot" (A)/(2)+"cot" (B)/(2)+ "co...

    Text Solution

    |

  4. If the reciprocals of the lengths of the sides of a Delta ABC are in h...

    Text Solution

    |

  5. If p and Q are two points on the curve y=2^(x+2) such that OP .hat(i)=...

    Text Solution

    |

  6. P and Q are points on the straight line passing to the vector 2 hat(i)...

    Text Solution

    |

  7. Let m be the unit vector orthogonal to the vector hat(i)- hat(j)+ hat(...

    Text Solution

    |

  8. If a,b,c are non- coplaner unit vectors such that a xx (b xx c)= (b+c)...

    Text Solution

    |

  9. If a and b are two unit vectors such that c=(a xx c)+b then the maximu...

    Text Solution

    |

  10. If alpha,beta, gamma are non-zero vectors such that |beta|=|gamma|=1 a...

    Text Solution

    |

  11. The arithmetich mean and standard deviation of a data of nine numbers ...

    Text Solution

    |

  12. The variance of the following distribution is

    Text Solution

    |

  13. A and B are two events such that P(A)=0.58 P(B) =0.32 and P(A cap B)=0...

    Text Solution

    |

  14. Two dice are thrown simultaneosly. If A is event of getting the sum of...

    Text Solution

    |

  15. A bag contains 6 balls .if 4 are drawn at a time and all of then are f...

    Text Solution

    |

  16. If the probability distribution of a random variable X is given by

    Text Solution

    |

  17. A manufacturer of locks knows that 2 % of his product is defective . I...

    Text Solution

    |

  18. The equation of the locus of point (2 cos theta-3,3 sin theta-4) is

    Text Solution

    |

  19. When the origin is shifted to the point (2,3) and then the coordinate ...

    Text Solution

    |

  20. A strainght line L with negative slope passes through the point (1,1) ...

    Text Solution

    |