In a triangle ABC is `2 cos (B)/(2) cos (C )/(2)=(1)/(2)+ ((b+c)/(a)) sin (A)/(2)` then find the measure of angle A.

In any triangle ABC, show that : 2a cos (B/2) cos (C/2) = (a+b+c) sin (A/2)

In any triangle ABC,show that: 2a cos((B)/(2))cos((C)/(2))=(a+b+c)sin((A)/(2))

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 If (2cos A)/(a)+(cos B)/(b)+(2cos C)/(c)=(a)/(bc)+(b)/(ca) find the angle A .

If in a Delta ABC,(cos A)/(a)=(cos B)/(b)=(cos C)/(c), then find the measures of angles A,B,C.

In the triangle ABC if (2 cos A)/a + ( cos B)/b + (2 cos C)/c = a/(bc) + b/(ca) find the angle A.

In a triangle ABC If ( 2 cos A)/a + ( cos B)/b + (2 cos C)/c = a/(bc) + b/(ca) , find the angle A.

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 any triangle ABC, prove that : a (cos B + cos C) = 2 (b +c) sin^2 frac (A)(2) .

If in a triangle ABC, in the usual notation, 2a cos ((B-C)/(2))=b+c and Be neC . Then the measure of the angle A is