If `A+B+C=pi` Prove that `tan3A+ tan3 B + tan 3C = tan3A tan3B tan3C`

If A + B + C = pi , prove that tan3A + tan3B + tan3C = tan3A*tan3B*tan3C

If A+B+C=pi Prove that tan3A+tan3B+tan3C=tan3A tan3B tan3C

If A + B + C = pi , prove that tan A+ tan B + tan C = tan A tan B tan C

If A+B+C=pi , prove that (a) tan 3A+tan3B+tan3C=tan3A tan 3B tan 3C (b) cot""(A)/(2)+cot""(B)/(2)+cot""(C)/(2)=cot""(A)/(2)cot""(B)/(2)cot""(C)/(2)

If A+B+C=pi, prove that tan3A+tan3B+tan3C=tan3A*tan3B*tan3C

Given that A = B +C. prove that tan A - tan B - tan C = tan A tan B tan C.

If A+B+C= pi , prove that tan A+tan B+tan C= tanA tan B tan C

In Delta Prove that tan A+tan B+ tan C =tan A tan B tan C .

If A + B + C = 180^(@) , then prove that tan A + tan B + tan C = tan A tan B tan C.

If A + B + C =180^@ , prove that : tan A + tan B + tan C = tan A tan B tan C .