If Rin, Rf and Vin are input resistance, feedback resistance and input voltage of a non-inverting amplifier respectively, then the output voltage Vout is _________.
Vout = `R_f/(R_m)` Vin
Vout = `[1-R_f/R_m]` Vin
Vout = `[1+R_f/R_m]`
Vout = `[1-R_f/R_m]` Vin