In an acute angled `Delta` ABC ,the minimum value of tanAtanBtanC is

In an acute angled triangle ABC , the minimum value of tanA tanB tanC is

In an acute angled /_ABC, the minimum value of tan A tan B tan C is

If A, B, C be an acute angled triangle, then the minimum value of tan^(4)A+tan^(4)B+tan^(4)C will be

If A, B, C be an acute angled triangle, then the minimum value of tan^(4)A+tan^(4)B+tan^(4)C will be

Prove that in an acute angled triangle ABC, the least values of Sigma secA and Sigma tan^2 A are 6 and 9 respectively.

In an acute angled triangle ABC, show that tan^2A+tan^2B+tan^2Cge9

In an acute angled Delta ABC, if 'tan(A+B-C)=1 and sec(B+C-A)=2 and . Then value of A is:

In an acute angled /_ABC, the least value of sec A+sec B+sec C is