`r + r_3 + r_1 - r_2 =`

( r+ 2+ r_1) ( r_2+ r_3) ( r_3 + r_1)= 4Rs^(2)

When a certain positive integer P is divided by another positive integer, the remainder is r_1 When a second positive integer Q is divided by the same integer, the remainder is r_2 and when (P + Q) is divided by the same divisor, the remainder is r_3dot Then the divsor may be r_1 r_2 r_3 (b) r_1+r_2+r_3 (c) r_1-r_2+r_3 (d) r_1 +r_2-r_3 (e) C a nnot b e d e t e r m in e d

Prove that in Delta ABC S (( r_1- r_2) /( a) + ( r_2- r)/( b) + ( r_3- r)/( c ) ) = r_1+ r_2+ r_3 Prove that in Delta ABC

In Delta ABC, r_3+ (r_1 r_2)/(r_1+r_2)=

Show that ( ab-r_1r_2)/(r_3) = ( bc- r_2r_3)/( r_1) = ( ca- r_3r_1)/( r_2)