Home
Class 11
MATHS
In Delta ABC ,(a+b+c) (tan ""(A)/(2) +...

In ` Delta ABC ,(a+b+c) (tan ""(A)/(2) +tan ""(B)/(2) ) tan "" ( C) /(2) = `

A

` c `

B

` ( c ) /(2) `

C

` 2c `

D

` 3c `

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - I ( Straight Objective Type Questions ) |58 Videos
  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - I (More than One correct answer Type Questions) |4 Videos
  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise EXERCISE - II|148 Videos
  • PLANES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|30 Videos
  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos

Similar Questions

Explore conceptually related problems

In Delta ABC , show that (a+b+c) ( tan"" (A)/(2) + tan"" (B)/(2)) = 2 c"" cot "" ( C )/(2) .

If sin A : sin B : sin C = 3: 4: 5 then tan ""(A)/(2) : tan ""(B)/(2) : tan "" (C ) /(2) =

Knowledge Check

  • In Delta ABC, tan ""A/2 * tan ""(B)/(2) + tan""(B)/(2) * tan""(C)/(2) + tan ""(C)/(2)* tan""A/2=

    A
    `0`
    B
    1
    C
    `-1`
    D
    2
  • In Delta ABC ( tan ""(A)/(2) - tan ""(B) /(2)) /( tan ""(A)/(2) +tan ""(B)/(2)) =

    A
    `(a-b)/(c) `
    B
    `(a+b)/(c) `
    C
    `(b-a)/(c) `
    D
    `0`
  • In Delta ABC, if tan ""(A)/(2), tan""(B)/(2) , tan""(C)/(2) are in A.P. then cos A , cos B , cos C are in

    A
    A.P.
    B
    H.P.
    C
    G.P.
    D
    A.G.P
  • Similar Questions

    Explore conceptually related problems

    If A+B+C=360^(@) " then " tan""(A)/(2) + tan""B/2 + tan ""(C)/(2) =

    In Delta ABC, (b+c-a) tan (A//2) =

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

    In Delta ABC, sum (a+b) tan ((A-B)/2)=

    In Delta ABC tan "" ( A)/(2) = ( 5)/( 6) , tan "" ( C )/(2) = (2)/(5) then a,b,c are such that