T_(n)" a triangle "ABC,(r_(1)+r_(2))/(1+cos C)=

In a triangle ABC , (r_1+r_2)/(1+ cos C)=

In a triangle ' ABC,r_(-)1

In a triangle ABC,(r_(1)-r)/(a)+(r_(2)-r)/(b)+(r_(3)-r)/(c)=

In a triangle ABC , if r_(1) =2r_(2) =3r_(3) , then a:b:c =

In triangle ABC ,if (r_(1))/(6)=(r_(2))/(3)=(r_(3))/(2) ,where, r_(1),r_(2) and r_(3) are ex-radii, then find the value of (a)/(b)+(b)/(c)+(c)/(a) ?

In triangle ABC,if (1-(r_(1))/(r_(2)))(1-(r_(2))/(r_(3)))=2 then the triangle is

In triangle ABC,(r_(1)+r_(2)+r_(3)-r) is equal to

In any triangle ABC, r_(1),r_(2)+r_(2)r_(3)+r_(3)r_(1)=....