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## Homework Statement

Analyze the ideal op-amp circuit shown in figure to find an expression for v0 in terms of vA,vB and the resistance values.

## Homework Equations

if i label the voltage across R1 as V1

then vi know that v1=R1/(R1+R2) *v0

but i need one more expression for v1.

i tried to use kvl in the lope (with Va,Ra and R1) but couldn't solve because of resistance Ra

## The Attempt at a Solution

#### Attachments

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