What should be the value of the resistance?
You need to find a book on transistor circuit design. A college-level text
should be okay. The math isn't complex, so you shouldn't have trouble
understanding it.
Hint: Since the "big" resistor is bypassed, you can model the small-signal
AC gain as if the big resistor weren't there at all. DC feedback is the sum
of both resistors, of course.
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