Prove that in ` A B C ,tanA+tanB+tanCgeq3sqrt(3,)` where `A , B , C` are acute angles.

Prove that in Delta ABCtan A+tan B+tan C>=3sqrt(3); 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.

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

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

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

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 ?

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

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 ?

If tanA=-1/2 and tanB=-1/3 , (where A, B gt 0) , then A+B can be

If sin A=(1)/(sqrt(10)) and sin B=(1)/(sqrt(5)), where A and B are positive acute angles,then A+B is equal to