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The Question asks what is the gain in dB and also what are the input and output resistances

I know the gain is 1 so dB that would be equal to 0 dB

But I am confused on how to find the input and output resistances.

I think you have to assume it is an ideal op, so would that mean the input resistance is infinite and output resistance is zero?

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    \$\begingroup\$ Yes. You've got this sorted. \$\endgroup\$ – Nick Alexeev Feb 25 '16 at 22:08
  • \$\begingroup\$ Yup! Too short for an answer, or a comment unless I add this! \$\endgroup\$ – Neil_UK Feb 25 '16 at 23:10

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