1. The problem statement, all variables and given/known dataHow do I prove the relationship between the equivalent resistance of a parallel circuit and the values of the constituent resistors exist? 2. Relevant equations V=IR 3. The attempt at a solution Is it because: I total= I1+I2+I3 and V is the same in parallel so. V/R total= V/R1 + V/R2 + V/R3 and divide by V so 1/R= 1/R1 + 1/R2 + 1/R3. is that why?