In a `DeltaABC`, if `r=r_2+r_3-r_1` and `Agt pi/3` then range of `s/a` contains
(A) `(1/2, 2)`
(B) `[1,2)`
(C) `(1/2, 3)`
(D) `(3,oo)`

In a DeltaABC, r_(1) + r_(2) + r_(3) -r =

In a DeltaABC, if r_(1)=2r _(2)=3r_(3), then show that a/b=5/4.

In DeltaABC , if r = 1, R = 3, and s = 5 , then the value of a^(2) + b^(2) + c^(2) is _____

In an equilateral triangle r:R : r_(1) is (A) 1:1:1 (B) 1:sqrt(2):3 (C) 1:2:3 (D) 2:sqrt(3):sqrt(3)

In a triangle , if r_(1) = 2r_(2) = 3r_(3) , then a/b + b/c + c/a 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

Show that 16R^(2)r r_(1) r _(2) r_(3)=a^(2) b ^(2) c ^(2)

In a DeltaABC ,with usual notations, observe the two statements given below: (I) rr_(1)r_(2)r_(3)=Delta^(2) (II) r_(1)r_(2)+r_(2)r_(3)+r_(3)r_(1)=s^(2) Which one of the following is correct?