(4)quad tan((A)/(2)+B)=(c+b)/(c-b)tan(A)/(2)

Prove that, tan((A)/(2)+B)=(c+b)/(c-b)tan((A)/(2))

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

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

If A+B+C=pi , then tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2))+tan((C)/(2))tan((A)/(2)) is equal to a) (pi)/(6) b)3 c)2 d)1

tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2))+tan((C)/(2) ))tan((A)/(2))=1

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

In /_ABC with usual notations,if a,b,c are in A.P.then the numerical value of tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2)) is

(viii) (b+c-a) tan( A/2) = (c+a-b) tan( B/2) = (a+b-c) tan C/2

The value of (tan((A)/(2)))/((a-b)(a-c))+(tan((B)/(2)))/((b-c)(b-a))+(tan((c)/(2)))/((c-a)(c-b))

In Delta ABC if tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2))=(2)/(3) then a+c