If A,B,C are the angles of a non right angled triangle ABC. Then find the value of: `|[tanA,1,1],[1,tanB,1],[1,1,tanC]|`

If A,B,C are the angles of a triangle, prove that the maximum value of cos A cos B cos C "is" (1)/(8)

In triangle ABC, right angled at C, (tanA+tanB) equal to

If two angles of a triangle are tan^(-1)(2)a n dtan^(-1)(3), then find the third angle.

If A(1, 4, 2), B(-2, 1, 2) and C(2, -3, 4) are the vertices of the triangle ABC, then find the angles of the triangle ABC.

In triangle ABC, prove that the maximum value of tanA/2tanB/2tanC/2i s R/(2s)

If two angles of a triangle are tan^(-1) (2) and tan^(-1) (3) , then find the third angles

In a triangle tanA+tanB+tanC=6 and tanAtanB=2 , then the values of tanA, tanB and tanC are

Each question has four choices a,b,c and d out of which only one is correct. Each question contains Statement 1 and Statement 2. Make your answer as: a) If both the statements are true and Statement 2 is the correct explanation of statement 1. b) If both the statements are True but Statement 2 is not the correct explanation of Statement 1. c) If Statement 1 is True and Statement 2 is False. d) If Statement 1 is False and Statement 2 is True. Statement 1: If A ,B ,C are the angles of a triangle such that angle A is obtuse, then tanBt a n C > 1. Statement 2: In any triangle, tanA=(tanB+tanC)/(tanBtanC-1)

ABC is an obtuse angled triangle whose angle C =135^(@) Value of tanA + cotB is-