Prove that in `DeltaABC` `tanA+tanB+tanCge3sqrt3`; where `A;B;C` are acute angles.

Prove that in ABC,tan A+tan B+tan C>=3sqrt(3) where A,B,C are acute angles.

Prove that in Delta ABCcos A+cos B+cos C<=(3)/(2); where A;B;C are acute angles.

In Delta ABC, prove that tan A+tan B+tan C>=3sqrt(3), where A,B,C are acute angles.

In DeltaABC , tanA+tanB+tanC=tanAtanBtanC

If sinA=(3)/(5)andcosB=(12)/(13) ,what is the value of (tanA-tanB)/(1+tanAtanB) ,it being given that A and B are acute angles ?

Prove that: (tanA + tanB)/(cotA+cotB)=tanAtanB

Prove that- sin(A-B)/sin(A+B)= (tanA-tanB)/(tanA+tanB)

Prove that- sin(A-B)/sin(A+B)= (tanA-tanB)/(tanA+tanB)

In a DeltaABC, if tanA+2tanB=0, then which one is correct?

Let "sin"(A+B)=sqrt(3)/(2)and"cos"B=sqrt(3)/(2) , where A, B are acute angles. What is "tan"(2A-B) equal to ?