" Qi) If "[" fant "A+tan^(-1)B+tan^(-1)C=pi" prove that "],[A+B+C=ABC]

If tan^(-1) a+tan^(-1) b +tan^(-1)c=pi , prove that a+b+c=abc.

If tan ^(-1)a+tan^(-1)b+tan^(-1)c=pi then prove tjhat a+b+c=abc

If tan^(-1)a+tan^(-1)b+tan^(-1)c=pi then prove tjhat a+b+c=abc

if tan^(-1)a+tan^(-1)b+tan^(-1)c=pi then prove that a+b+c=abc

Q.if tan ^(-1)a+tan^(-1)b+tan^(-1)c=pi, then prove that a+b+c=abc.

If "tan"^(-1)a+"tan"^(-1)b+"tan"^(-1)c=pi , then prove that a+b+c=abc .

In any triangle ABC, if A=tan^(-1) 2 and B = tan^(-1) 3 . Prove that C= pi/4 .

In any triangle ABC, if A=tan^(-1) 2 and B = tan^(-1) 3 . Prove that C= pi/4 .

If in triangleABC, tan^(-1)(a/(b+c))+ tan^(-1)(c/(a+b)) = pi/4 , then prove that, the triangle is right angled.

If a,B,C are positive acute angles and tan A=(4)/(7),tan B=(1)/(7),tan C=(1)/(8), prove that A+B+C=45