IF in triangle ABC ` a cos ^2 ((C )/(2 )) c cos ^2 ((A) /(2 )) = (3 b)/(2)` then the sides a,b,and c

In a triangle ABC , (c^2 +a^2 -b^2)/(2ca) is:

In a triangle ABC , a =2,b=3 and sin A = (2)/(3) then cos C=

If in a triangle a cos^2C/2+ c cos^2A/2=(3b)/2, then find the relation between the sides of the triangle.

in a triangle ABC , ( cos A)/(a) = (cos B )/( b) = ( cos C )/( c ) if a=(1 )/( sqrt(6)) then the area of the triangle ( in square units ) is

in a triangle ABC , (b+c) ( bc ) cos A + (a +c) (ac) cos B + ( a+b) (ab) cos C Is

In a Delta ABC, prove that a sin ((A)/(2) + B) = (b + c) sin ""(A)/(2)

In a Delta ABC, prove that a ( cos B + cos C) = 2 (b + c) sin^(2)""(A)/(2)

In any triangle ABC ,c^2 sin 2 B + b^2 sin 2 C is equal to

In any triangle ABC, prove that a cos A+b cos B +c cos C =(8 triangle^(2))/(abc) .

In any triangle prove that a^2 =(b+c)^2 sin^2 (A/2) +(b-c)^2 cos^2 (A/2)