In `DeltaABC, if A=90^@`then`(1-r_1/r_2)(1-r_1/r_3)=`

In Delta ABC , if (1- (r_1)/(r_2)) (1- ( r_1)/( r_3)) = 2, then the triangle is

In DeltaABC,if(1-r_1/r_2)(1-r_1/r_3)=2 then the triangle is

In DeltaABC if r_(1)=R then

In Delta ABC, (1/r-1/r_1)(1/r-1/r_2)(1/r-1/r_3)=

If (r_2-r_1) (r_3-r_1) =2r_2r_3. show that A = 90 ^(@) (1-(r_1)/( r_2)) (1-(r_1)/(r_3)) =2 , show that A = 90 ^(@)

In DeltaABC,r r_1 cot""A/2=