If,A,B,C are angles of a triangle and if none of them is equal to `(pi)/(2)` ,then `tan A+tan B+tan C` is

The angles A, B, C of a triangle are in the ratio 2:5:5. What is the value of tan B tan C?

If A, B and C are angles of a triangle such than tan A = 1, tan B = 2, then what is the value of tan C ?

If A,B,C are the angles of a triangle such that tan A=1 and tan B=2 , then : tan C=……….

The angles A, B, C of a triangle are in the ratio 2 : 5 : 5. What is the value of tan B tan C ?

If A, B and C are angles of a triangle such that angleA is obtuse, then show tan B tan C lt 1.

Iftan A + tan B + tan C = tan A. tan B, tan C, then (A) A,B,C must be angles of a triangle (B) the sum of any two of A,B,C is equal to the third (C) A+B+C must be n integral multiple of ? (D) None of these 12. C, then -

If A,B,C are angles of a triangle ,then the minimum value of tan^(2)(A/2)+tan^(2)(B/2)+tan^(2)(C/2) , is

in triangle ABC,tan A+tan B+tan C=