Op amp practice problems
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Read the op-amp class notes.

For the circuit shown,

• R₁ = 18 kΩ
• R₂ = 33 kΩ
• R₃ = 18 kΩ
• R₄ = 33 kΩ
• v_a = 4.1 V
• v_b = -2.9 V

What is the output voltage v_o?

Answer