In triangle ABC, if (a+b+c)(b+c-a) = 3bc, state which of the following is the value of the angle A?

In triangle ABC, if a=3, b=5 and c=120^(@) , state which of the following is the value of c?

The circumradius of triangle ABC is 10 units: If c=10sqrt(3) units, state which of the following is the value of the angle C?

In a triangle ABC,(a+b+c)(b+c-a)=lambda bc if

In a Delta ABC, (a+b+c) (b+c-a)=lamda bc if

In a triangle ABC if the angles A, B, C are in AP, then which one of the following is correct ?

If in a triangle ABC, 2 (cos A)/(a) +(cos B)/(b)+2(cos C)/c=(a)/(bc)+b/(ca) then the value of the angle A is

In a triangle ABC, angle A = 60^(@) and b : c = (sqrt3 + 1) : 2 , then find the value of (angle B - angle C)

In a triangle ABC, angle A = 60^(@) and b : c = (sqrt3 + 1) : 2 , then find the value of (angle B - angle C)

If in a triangle ABC , 2(cosA)/a+(cosB)/b+2(cosC)/c=a/(bc)+b/(ca) , then the value of the angle A, is