1. The problem statement, all variables and given/known data Determine the values of R1 and R2 to aquire a voltage gain (Vo/Vi) ranging from 2 to 10. 2. Relevant equations [tex] A_Vt = A_V1 * A_V2 [/tex] 3. The attempt at a solution I completely bombed this test question...even though my professor gave me a "hint". he said the first op-amp is a unity gain op amp...which I TOTALLY do not understand why, being that the virtual ground makes Vo1 = 0V, making Vo1/Vi = 0 which doesn't seem to have much unity... being Vo/Vi = 0 of the first op amp...there is no way i can multiply any gain from the second op amp to give an overall gain of 2...and that's when i decided my professor smokes crack. How the heck do I solve this?