In a triangle ABC ,`(a^2-b^2-c^2) tan A +(a^2-b^2+c^2)` tan B is equal to

In triangle ABC(a^(2)-b^(2)-c^(2))tan A+(a^(2)-b^(2)+c^(2))tan B=

In tringle ABC (a^(2)-b^(2)-c^(2))tan A+(a^(2)-b^(2)+c^(2))tan B=

Prove that for a triangle ABC, (a^2-b^2-c^2) tan A+(a^2-b^2+c^2)tan B=0

In any triangle ABC, prove that : (c^2-a^2+b^2) tan A= (a^2-b^2+ c^2) tan B= (b^2-c^2+a^2) tan C .

In a triangle ABC, prove that (a^2+b^2-c^2)tan C-(b^2+c^2-a^2)tan A=0

In any triangle ABC, prove that : (b^2-c^2) tan B tan C + (c^2-a^2)tan C tan A+ (a^2-b^2)tan A tan B =0 .

In any triangle ABC , (tan(A/2)-tan(B/2))/(tan(A/2)+tan(B/2)) is equal to

In triangle ABC ,if (b+c)^(2)=a^(2)+16Delta, then tan A is equal to

Show that in any triangle ABC, (a+b+c) (tan (A/2) + tan (B/2)) = 2c cot (C/2)