Prove that (cotA/2+cotB/2)(asin^2B/2+bsi...

Prove that `(cotA/2+cotB/2)(asin^2B/2+bsin^2A/2)=ccotC/2`

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In A B C ,(cot A/2+cotB/2)(asin^2B/2+bsin^2A/2)= cotC (b) ccotC (c) cotC/2 (d) ccotC/2

In A B C ,(cot A/2+cotB/2)(asin^2B/2+bsin^2A/2)= cotC (b) ccotC (c) cotC/2 (d) ccotC/2

In A B C ,(cot A/2+cotB/2)(asin^2B/2+bsin^2A/2)= cotC (b) ccotC (c) cotC/2 (d) ccotC/2

In A B C ,(cot (A/2)+cot(B/2))(asin^2(B/2)+bsin^2(A/2))= (a) cotC (b) c cotC (c) cot(C/2) (d) c cot(C/2)

In A B C ,(cot (A/2)+cot(B/2))(asin^2(B/2)+bsin^2(A/2))= (a) cotC (b) c cotC (c) cot(C/2) (d) c cot(C/2)

In DeltaABC , prove that: cotA/2+cotB/2+cotC/2=(a+b+c)/(a+b-c)cotC/2

In DeltaABC , prove that: 2[asin^(2)B/2+bsin^(2)A/2]=a+b-c

In DeltaABC , prove that: 2[asin^(2)B/2+bsin^(2)A/2]=a+b-c

Prove that cotA+cotB+cotC=(a^2+b^2+c^2)/(4Delta)

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