I have unable to figure out this 2 problem.
Please help me understand them.
For the first one #1, (Op Amp), I know that all ideal opAmp has V+ = V but the problem states that Vout = A ( V+  V). If there were equal, Vout will be 0 then.
For the second one #2 ( I am really have a hard with how to redraw the circuit and derive the differential equation.
I have been out of school for some time so I am a bit rusty.
Please help
Please help me understand them.
For the first one #1, (Op Amp), I know that all ideal opAmp has V+ = V but the problem states that Vout = A ( V+  V). If there were equal, Vout will be 0 then.
For the second one #2 ( I am really have a hard with how to redraw the circuit and derive the differential equation.
I have been out of school for some time so I am a bit rusty.
Please help
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