Hi!
Here is my task:


Any idea?
I have hard times figuring out how circuits with CFB OPAMPs are analysed.

 

1. Write an equation for V-
2.Write a different equation for V+
3. Because of the behavior of a closed loop opamp, V- = V+.
4. reduce the resulting single equation to express Viz as a function of V1 and the four resistors...