" If "3tan(A)/(2)tan(C)/(2)=1," then "a,b,c" are in "

In a Delta ABC ,if 3 tan (A/2) tan (C/2)=1 then a,b,c are in

In a triangleABC , if 3tan (A/2) tan (C /2)=1 , then sides a,b,c are in

In DeltaABC , if "tan"(A)/(2)"tan"(C)/(2)=(1)/(2) , then a ,b and c are in

In Delta ABC, if 3 tan ""A/2 tan""C/2=1 then a,b,c are in

In a triangle A B C , if a, b, c are in A.P then tan (A)/(2), tan (B)/(2), tan (C)/(2) are in

1-tan(A)/(2)tan(B)/(2)=(2c)/(a+b+c)

In Delta ABC, tan ""A/2 * tan ""(B)/(2) + tan""(B)/(2) * tan""(C)/(2) + tan ""(C)/(2)* tan""A/2=

If A + B + C = 180^(@) , prove that tan ""(A)/(2) tan ""(B)/(2) + tan ""(B)/(2) tan""( C)/(2) +tan""(C)/(2) tan"" (A)/(2) = 1

If sin A : sin B : sin C = 3: 4: 5 then tan ""(A)/(2) : tan ""(B)/(2) : tan "" (C ) /(2) =