The minimum value of `tanB tan C` in an acute angled triangle ABC is

The minimum value of tan B tan C in an acute angled triangle ABC is

For a /_\ABC, if cotA.cotB.cotCgt0 , then nature of the triangle is (A) acute angled triangle (B) right angled triangle (C) obtuse angled triangle (D) none of these

In an acute-angled triangle ABC, tanA+tanB+tanC

In an acute-angled triangle ABC, tanA+tanB+tanC

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

If in a triangle ABC, tanA+tanB+tanC>0 the triangle is (A) acute angled triangle (B) obtuse angled (C) right angled (D) none of these

Assertion : Delta ABC is an acute angled triangle, angle A, angle B and angle C are less than 90^(@) Reason : Triangles are classified according to the sides and the angles.

Statement-1: In an acute angled triangle minimum value of tan alpha + tanbeta + tan gamma is 3sqrt(3) . And Statement-2: If a,b,c are three positive real numbers then (a+b+c)/3 ge sqrt(abc) into in a triangleABC , tanA+ tanB + tanC= tanA. tanB.tanC