(b-c)/a cos^2(A/2)+(c-a)/bcos^2(B/2)+(a-...

`(b-c)/a cos^2(A/2)+(c-a)/bcos^2(B/2)+(a-b)/c cos^2(C/2)=`

A

`(s-a)(s-b)`

B

`(s-b)(s-c)`

C

`(s-c)(s-a)`

D

0

Verified by Experts

The correct Answer is:

D

Similar Questions

Explore conceptually related problems

In any Delta ABC, prove that: (b-c)/(a)cos^(2)((A)/(2))+(c-a)/(b)cos^(2)((B)/(2))+(a-b)/(c)cos^(2)((C)/(2))=0

If A+B+C=180^0 , prove that : cos^2(A/2) + cos^2(B/2) - cos^2(C/2) = 2cos(A/2) cos(B/2) sin( C/2)

If A+B+C=pi then prove cos( (A)/2) cos( (B-C)/2) + cos( B/2) cos((C-A)/2) + cos( C/2) cos( (A-B)/2) = sinA +sinB+sinC

(bc) / (a) cos ^ (2) ((A) / (2)) + (ca) / (b) cos ^ (2) ((B) / (2)) + (ab) / (c ) cos ^ (2) ((C) / (2)) =

If A+B+C=pi then prove that cos^(2)((A)/(2))+cos^(2)((B)/(2))-cos^(2)((C)/(2))=2cos((A)/(2))cos((B)/(2))sin((C)/(2))

In DeltaABC,("cos"^(2)(A)/(2))/(a)+("cos"^(2)(B)/(2))/(b)+("cos"^(2)(C)/(2))/(c) is equal to

In any Delta ABC, prove the following: (a+b+c)(cos A+cos B+cos C)=2((a cos^(2))(1)/(2)(A+b cos^(2))(1)/(2)(B+cos^(2))(1)/(2)C)

(b^(2)-c^(2))/(a)cos A+(c^(2)-a^(2))/(b)cos B+(a^(2)-b^(2))/(c)cos C=0