b^(2)sin2C+c^(2)sin2B=

In which of the following situations,it is possible to have a triangle ABC?(All symbols used have usual meaning in a triangle)(A) (a +(-c-b)(a-c+b)=4bc(B)b^(2)sin2C+c^(2)sin2B=abC)a=3,b=5,c=7 and C=(2 pi)/(3)(D)cos((A-C)/(2))=cos((A+C)/(2))^(3)

In DeltaABC, b^(2) sin2C+c^(2)sin 2B=

In a triangle ABC, prove that b^(2) sin 2C+c^(2) sin 2B=2bc sin A .

lf in DeltaABC,b^(2)sin 2C + c^(2) sin 2B = 2bc,then the triangle is

lf in DeltaABC,b^(2)sin 2C + c^(2) sin 2B = 2bc,then the triangle is

In any triangle ABC, the value of (b^(2)sin 2C + c^(2) sin 2B) is-

In triangle ABC, b^(2), sin2C+c^(2) sin 2B-2bc where b=20 c=21 then inradius =

If the area of the triangle ABC be triangle , show that, b^(2)sin 2C + c^(2) sin 2B= 4triangle .