If in a triangle `ABC, 3 sin A = 6 sin B=2sqrt3sin C`, then the angle A is

In a triangle ABC, if sin A sin B= (ab)/(c^(2)) , then the triangle is :

If in a triangle ABC sin A = 4/5 and sin B = 12/13 , then sin C =

If in a triangle ABC ,a sin A=b sin B, then the triangle, is

Statement I: If in a triangle ABC, sin ^(2) A+sin ^(2)B+sin ^(2)C=2, then one of the angles must be 90^(@). Statement II: In any triangle ABC cos 2A+ cos 2B+cos 2C=-1-4 cos A cos B cos C

In DeltaABC, if sin^2 A+ sin^2 B = sin^2 C , then the triangle is

In any triangle ABC, if sin A , sin B, sin C are in AP, then the maximum value of tan ""B/2 is

In a triangle ABC, 2 ac sin (1/2(A-B + C)) =

In a triangle ABC, sin A- cos B = Cos C , then angle B is

In a triangle ABC, if sin A sin(B-C)=sinC sin(A-B) , then prove that cos 2A,cos2B and cos 2C are in AP.

In a triangle ABC , if cos A cos B + sin A sin B sin C = 1 , then a:b:c is equal to