"the opamp shown above is LM107 without it's supply voltages. The LM107 is obsolete, but nonetheless the maximum supply voltage can be researched. Suppose that v1=v2=v3, and R1=R2=R3=R4 = 25k ohms, and R5 = R1||R2||R3||R4 which equals 6250 ohms.
What is the range of input voltages for the circuit to be in the linear range?"
I don't understand what to do with this problem. My teacher vaguely brushed over opamps in class, told us what they did, and gave us equations. Obviously he also covered the linear range graph (where usually the VCC + and - are the limits).
I'm not sure where to even begin considering I don't have any voltages, except I know they are all equal to each other.
I've searched the book up and down for help, as well as the internet, and I'm completely lost. Can someone please help me.