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

If acos^2(C/2)+c cos^2(A/2)=(3b)/2 . To prove: cot(A/2),cot(B/2),cot(C/2) are in A.P.

In any Delta ABC , cot(A/2),cot(B/2),cot(C/2) are in A.P. , then

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

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

In any triangle ABC prove that cot(A/2)+cot(B/2)+cot(C/2)=cot(A/2)cot(B/2)cot(C/2)

In triangle ABC, if |[1,1,1], [cot (A/2), cot(B/2), cot(C/2)], [tan(B/2)+tan(C/2), tan(C/2)+ tan(A/2), tan(A/2)+ tan(B/2)]| then the triangle must be (A) Equilateral (B) Isoceless (C) Right Angle (D) none of these

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 Delta ABC, "cot"(A)/(2) + "cot" (B)/(2) + "cot" (C)/(2) is equal to

In any DeltaABC , prove that (a+b-c) cot (B/2) = (a-b+c) cot (C/2)