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" (iii) "(b-c)cot(A)/(2)+(c-a)cot(B)/(2)...

" (iii) "(b-c)cot(A)/(2)+(c-a)cot(B)/(2)+(a-b)cot(C)/(2)=0

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

Delta ABC;(b-c)cot((A)/(2))+(c-a)cot((B)/(2))+(a-b)cot((C)/(2))

In Delta ABC prove that (b-c)cot(A/2) + (c-a)cot(B/2) + (a-b)cot(C/2) = 0

Prove that in any /_\ABC . (b-c)cot(A/2)+(c-a)cot (B/2)+(a-b)cot (C/2)=0

For any triangle ABC prove that (b-c)cot(A/2)+(c-a)cot(B/2)+(a-b)cot(C/2) =0

In any triangle A B C , prove that: (b-c)cot (A/2)+(c-a)cot (B/2)+(a-b)cot (C/2) =0

Delta ABC;(b-c)(cot A)/(2)+(c-a)(cot B)/(2)+(a-b)(cot C)/(2)

In any triangle A B C , prove that: (b-c)cot A/2+(c-a)cot B/2+(a-b)cot C/2 =0

In any triangle ABC, prove that, (b-c)cot 'A/2' + (c-a) cot 'B/2' + (a-b) cot 'C/2'=0

cot((A)/(2))+cot((B)/(2))+cot((C)/(2))=cot((A)/(2))cot((B)/(2))cot((C)/(2))