Home
Class 12
MATHS
In a DeltaABC, tan ""1/2 (A+B) . Cot""1/...

In a `DeltaABC, tan ""1/2 (A+B) . Cot""1/2(A-B)` is equal to

A

`(a-b)/(a+b)`

B

`(a+b)/(c )`

C

`(a+b)/(a-b)`

D

`(a-b)/(2(a+b))`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS ENGLISH|Exercise Exercise For Sesssion 2|20 Videos

  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS ENGLISH|Exercise Exercise For Sesssion 3|34 Videos

  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS ENGLISH|Exercise SOLVED EXAMPLES|1 Videos

  • PRODUCT OF VECTORS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|51 Videos

  • SEQUENCES AND SERIES

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|38 Videos

Similar Questions

Explore conceptually related problems

tan(cot^(-1)x) is equal to

tan(cot^(-1)x) is equal to

In a DeltaABC , 2 Delta (cot B + cot C)=

If sin A = (1)/(sqrt3) and sin B = (1)/(sqrt5) find the value of tan ""(1)/(2) (A + B) . Cot "" (1)/(2) (A-B).

. In a DeltaABC, If tan (A/2) , tan(B/2), tan (C/2) , are in H.P.,then a,b,c are in

In any DeltaABC, sum (b - c) cot A/2 =

If "tan"A=1/(2),"tan"B=1/(3), then "tan"(2A+B) is equal to

In any DeltaABC , prove that (a-b)/(a+b)=(tan""1/2(A-B))/(tan""1/2(A+B))

In any DeltaABC , prove that cot (A/2) + cot (B/2) + cot (C/2) = (a+b+c)/(b+c-a) cot (A/2)

In any DeltaABC , prove that : tan (A/2 + B) = (c+b)/(c-b) tan (A/2)

ARIHANT MATHS ENGLISH-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise For Sesssion 1
  1. In the given figure,if AB= AC, angle BAD=30^(@)and AE=AD, then x is eq...

    Text Solution

    |

  2. In DeltaABC, a=4, b =12 and B=60^(@), thn the vlaue of sin A is

    Text Solution

    |

  3. Let ABC be a triangle such that angle A =45^(@) , angle B =75^(@), the...

    Text Solution

    |

  4. If the angles A, B, C of DeltaABC are in A.P. and b:c=sqrt(3):sqrt(2),...

    Text Solution

    |

  5. If cot ""A/2 =(b+c)/(a),then DeltaABC is

    Text Solution

    |

  6. In any triangle. if(a^2-b^2)/(a^2+b^2)=("sin"(A-B))/("sin"(A+B)) , the...

    Text Solution

    |

  7. In any triangle A B C , prove that: (a^2sin(B-C))/(sinB+s in C)+(b^2si...

    Text Solution

    |

  8. In any DeltaABC, is 2 cos B=a/c, then the triangle is

    Text Solution

    |

  9. Prove that ((a + b + c) (b + c -a) (c + a -b) (a + b -c))/(4b^(2) c^(2...

    Text Solution

    |

  10. If a cos A =b cos B, then the triangle is

    Text Solution

    |

  11. In Delta ABC, (a + b+ c) (b + c -a) = kbc if

    Text Solution

    |

  12. If : a = 9, b = 8 and c = x satisfies 3 cos C = 2, then : x =

    Text Solution

    |

  13. In DeltaABC, if sin^2 A+ sin^2 B = sin^2 C, then the triangle is

    Text Solution

    |

  14. The lengths of the sides of a triangle are alpha-beta, alpha+beta and ...

    Text Solution

    |

  15. In any triangle A B C , prove that: (1+cos(A-B)cos C)/(1+cos(A-C)cos B...

    Text Solution

    |

  16. If the sides of a triangle ABC are in AP and 'a' is the smallest side,...

    Text Solution

    |

  17. In a DeltaABC, a ^(2) cos 2B+b^(2) cos 2A+2ab cos (A-B)=

    Text Solution

    |

  18. In any DeltaABC, 2 [bc cos A + ca cos B+ ab cos C]=

    Text Solution

    |

  19. In a DeltaABC, tan ""1/2 (A+B) . Cot""1/2(A-B) is equal to

    Text Solution

    |

  20. If in a Delta ABC, b =sqrt3, c=1 and B-C =90^(@), then angle A is

    Text Solution

    |