What are the values of Rf and V2 for the given circuit?

[Aprtaenl]

Homework Statement

Hello,

I am trying to Calculate The Resistance Rf and the value of the Voltage V2. The setup is a logarithmic Op amp connected to a differential Op amp. Both Op amps obey the Golden Rules.

Attached below is my attempt at the solution and the question.

Currently, I have an equation with three variables, and so i think i need potentially two more equations but do not know how to obtain these.

Any help would be appreciated

 

[gneill]

Perhaps you could provide a closeup image of the circuit diagram oriented in the correct way?

Edit: Also type out the problem statement. The text is all but unreadable in your image.

 

[berkeman]

I'll try rotating it and enhancing the contrast a bit...

 

[Aprtaenl]

The text says

' In the Circuit below, the diode has a reverse saturation current Is= 10fA, a device factor n=1 and is operated at a temperature of 300K . Find values of resistance Rf and voltage V2 which will produce an output voltage.

Vout = ln (Vin)'