Hello and great day for all. Im asking for advice in this circuit. How to calculated Av for ac analysis in correct way.
Av1 =( R3//R6//R7// Beta(re +R9) ) / re+R9
Av2 = R8//R9 / re +R9
Using that formula i cannot get same with multisim simulator for Av1 and Av2

Av1 =( R3//R6//R7// Beta(re +R9) ) / re+R9
Av2 = R8//R9 / re +R9
Using that formula i cannot get same with multisim simulator for Av1 and Av2