In `Delta ABC` with usual notation `r_1/(bc) + r_2/(ac) + r_3/(ab)` is:

In Delta ABC with usual notation r_1/(bc)+r_2/(ca)+r_3/(ab) is

In Delta ABC with usual notation r_1/(bc)+r_2/(ca)+r_3/(ab) is

In Delta ABC with usual notation (r_(1))/(bc)+(r_(2))/(ca)+(r_(3))/(ab) is

In DeltaABC ,with usual notations r_(1),r_(2),r_(3) are in harmonic progression. If area of Delta ABC is 24 and perimeter is 24 then length of its sides are

In a /_\ABC (with usual notations) if ex-radii r_(1) , r_(2) , r_(3) are in H.P then (a+c)/b is

In Delta ABC , with usual notation observe the two statements given below Statement -I : r r_1 r_2r_3 =Delta ^(2) Statement -II : r_1r_2+r_2r_3+r_3r_1=s^(2) Which of the following statement is correct

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