`s/r_1+s/r_2+s/r_3-s/r` is equal to (with usual notation in `Delta ABC`, where `Delta` is area fo triangle ABC)

With usual notation in Delta ABC,(rr_(1))/(r_(2)r_(3)) is equal to

In Delta ABC, if r r_1=r_2 r_3 , then the triangle is

With usual notations,in a Delta ABC the value of prod(r_(1)-r) can be simplified as:

In Delta ABC, if 2R+r=r_1 then the triangle is

In Delta ABC, r_1 r_2 =r r_3 =

In a triangle ABC with usual notation b cosec B=a , then value of (b + c)/(r+ R) is

If a right angled Delta ABC of maximum area is inscribed within a circle of radius R. then ( Delta represents area of triangle ABC and r, r_(1), r_(2), r_(3) represent inradius and exradii, and s is the semi perimeter of then