In `DeltaA B C ,sum (b^2-c^2)/acosA=`

sum(b^(2)-c^(2))/(a)cos A=

In DeltaABC, sum ((b^(2)-c^(2)))/(a)cosA=

In any DeltaA B C ,suma(sinB-sin C)= (a) a^2+b^2+c^2 (b) a^2 (c) b^2 (d) 0

In any DeltaABC , prove that ((b-c))/acosA/2=sin((B-C))/2

In a DeltaA B Csum(b+c)tanA/2tan((B-C)/2)=

In any DeltaA B C ,(b+c)/(12)=(c+a)/(13)=(a+b)/(15),\ then prove that (cos A)/2=(cos B)/7=(cos C)/(11)dot

In a DeltaABC,sum(b+c)tan""A/2tan((B-C)/2)=

In a DeltaA B C , if b=sqrt(3), c=1 a n d /_A=30^0, then find a

In a DeltaA B C ,1/(1+tan^2(A/2))+1/(1+tan^2(B/2))+1/(1+tan^2(C/2)) = k [1+sin(A/2) sin(B/2) sin(C/2)], then the value of k is

In a DeltaA B C ,1/(1+tan^2(A/2))+1/(1+tan^2(B/2))+1/(1+tan^2(C/2))=k [1+sin(A/2) sin(B/2) sin(C/2)], then the value of k is