1. Design a two-input noninverting summer that will produce an output vO = 200 (v1 + v2).
2. Design a three-input noninverting summer that will produce an output vO = 6(v1 + v2 + 1V).
3. Design a cascaded OP AMP circuit that will produce the output vO = 5 × 107 vS + 2.5 V. The maximum gain for an OP AMP is 10,000. The input stage must have an input resistance of 1 kΩ or greater.