The overall gain of multiple amplifiers in cascade can be expressed as__________ (A1, A2, A3 are individual gains)

The overall gain of multiple amplifiers in cascade can be expressed a

1.	The overall gain of multiple amplifiers in cascade can be expressed as__________ (A1, A2, A3 are individual gains)
A.	A1-A2-A3
B.	A1+A2+A3
C.	A1/A2*A3
D.	A1A2A3
Answer» E.