In a triangle ABC `((a+b)cosC+(a+c)cosB+(b+c)cosA)/(sinA+sinB+sinC)=100` then the area of the circumcircle of triangle ABC is

In a triangle ABC, (cosB+cosC)/(1-cosA) =

In a triangle ABC, (b+c)(bc)cosA+(a+c)(ac)cosB+(a+b)(ab)cosC is

In a triangle ABC , acosB + b cosC + c cosA =(a+b+c)/2 then

In a triangle ABC , acosB + b cosC + c cosA =(a+b+c)/2 then

In a triangle ABC, cosecA (sinB cosC + cosB sinC) is :

In a triangle ABC cosA+cosB+cosC<=k then k=

In a triangle ABC cosA+cosB+cosC<=k then k=

If A,B,C are interior angles of a triangle ABC such that (cosA+cosB+cosC)^2+(sin A+sin B+sin C)^2=9 then the number of possible triangle is

If in DeltaABC,(cosA)/(a)=(cosB)/(b)=(cosC)/(c) and side a=2, then the area of the triangle is