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

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

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

Prove that in triangle ABC, the least values of sum cos ec((A)/(2)) and sum sec^(2)((A)/(2)) are 6

Prove that in an acute angled triangle ABC , sec A+sec B +sec Cge 6 .

prove that In an acute angled triangle ABC, secA+ secB+secCge6 is

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

Prove that n in acute angled triangle ABC , sec A+sec B +sec Cge 6 .

Prove that n in acute angled triangle ABC , sec A+sec B +sec Cge 6 .

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

If A, B,C are angles of a acute angled triangle then the least value of tan A tan B tan C is