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

If A+B+C=pi , prove that : cot( A/2)+ cot(B/2) + cot( C/2) = cot( A/2) cot(B/2) cot(C/2)

If A+B+C=pi Prove that cot A/2+cot tB/2+cot C/2=cot A/2cot B/2cot C/2

In a triangle ABC,prove that (cot((A)/(2))+cot((B)/(2))+cot((C)/(2)))/(cot A+cot B+cot(C))=((a+b+c)^(2))/(a^(2)+b^(2)+c^(2))

In any triangle ABC , prove that a(cosB+cot(A/2).sinB)=b+c .

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

In a triangle ABC prove that r_1r_2r_3=r^3 cot^2 (A/2). cot^2 (B/2).cot^2(C/2)

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

In a triangle ABC, if r^(2)cot((A)/(2))cot((B)/(2))cot((C)/(2))=

if A+B+C=pi prove that cot((A)/(2))+cot((B)/(2))+cot((C)/(2))=cot((A)/(2))xx cot((B)/(2))xx cot((C)/(2))

In a Delta ABC prove that (tan(A+B))/(2)=(cot C)/(2)