" In a "A4BC*(r_(1)+r_(2))(r_(2)+r_(3))(r_(3)+r_(1))" is equal to "

In triangleABC , If r_(1), r_(2), r_(3) are exradii opposites to angles A,B and C respectively. Then (1/r_(1) +1/r_(2)) (1/r_(2)+1/r_(3)) (1/r_(3)+1/r_(1)) is equal to

In triangleABC , If r_(1), r_(2), r_(3) are exradii opposites to angles A,B and C respectively. Then (1/r_(1) +1/r_(2)) (1/r_(2)+1/r_(3)) (1/r_(3)+1/r_(1)) is equal to

If r_(1),r_(2)andr_(3) are exradii of any triangle , then r_(1)r_(2)+r_(2)r_(3)+r_(3)r_(1) is equal to

In a triangle ABC, if (r_(1)+r_(2))(r_(2)+r_(3))(r_(3)+r_(1))4RK then k=

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

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

Show that (r_(1)+ r _(2))(r _(2)+ r _(3)) (r_(3)+r_(1))=4Rs^(2)

Show that (r_(1)+ r _(2))(r _(2)+ r _(3)) (r_(3)+r_(1))=4Rs^(2)

In triangle ABC .If (r_(1)+ r _(2))(r _(2)+ r _(3)) (r_(3)+r_(1))=4Rs^(2) Then prove it

Three circles with radius r_(1), r_(2), r_(3) touch one another externally. The tangents at their point of contact meet at a point whose distance from a point of contact is 2 . The value of ((r_(1)r_(2)r_(3))/(r_(1)+r_(2)+r_(3))) is equal to