If A,B,C are the angles of a triangle, show that,
(ii) `tan ((A - B)/2) = cot (C/2 + B)`.

If A,B,C are the three angles of a triangle,show that:(iv) tan((B+C)/2)=cot(A/2)

If A,B,C are the angles of a triangle, show that, (iv) (tan(B + C) + tan (C + A) + tan (A + B))/(tan (pi - A) + tan(2pi - B) + tan (3pi - C)) = 1

If A, B, C are the angles of a triangle then tan ((B+C)/2)=

If A, B and C are interior angles of a triangle ABC, then show that tan((A + B)/(2)) = cot ""(C)/(2)

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot (C/2)

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot (C/2)

If A, B, C are interior angles of triangle ABC, prove that :- tan((A+B)/2)=cot "C/2 .

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot C/(2)

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot C//(2)

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot ©/(2)